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PR #3277: Clean up and harden POP3 helper login functions Sweekar (Jan 23)
Hello Nmap Developers,
As suggested in CONTRIBUTION.md i am writing this mail to notify about my PR
https://github.com/nmap/nmap/pull/3277

This PR refactors and fixes the POP3 authentication helper functions used
by NSE scripts, including pop3-brute.nse.

Main changes:

-

Hardened SASL LOGIN handling
-

Improved SASL PLAIN and CRAM-MD5 logic
-

Corrected APOP handling and report missing OpenSSL support
-

Normalized...

HTTP2 cleartext service probe Harrison Neal (Dec 24)
Good day,

In instances where HTTP2 is used cleartext without TLS+ALPN (a.k.a., h2c,
prior knowledge), nmap does not appear to have a service probe.

The following is something really simple based on RFC7540, which covers the
initial client message and the server's initial SETTINGS frame. The match
regex below ignores the length (RFC says the server's initial SETTINGS
frame can be empty, nghttpd appears to provide a single entry for...

dev () nmap org judy Wallace (Dec 19)
dev () nmap org

Re: [Battery-svn] r39303 - Kalinux/nselib Trinidad JR Cristian (Nov 28)
Sent from my T-Mobile 5G Device
Get Outlook for Android

https://github.com/the-tcpdump-group/tcpdump/commit/32027e199368dad9508965aae8cd8de5b6ab5231?diff=unified#:~:text=static%20void,%7B

________________________________
From: Trinidad JR Cristian <Employment404 () outlook com>
Sent: Friday, November 28, 2025 6:20:32 PM
To: dev () nmap org <dev () nmap org>
Subject: Re: [Battery-svn] r39303 - Kalinux/nselib...

Re: dev Digest, Vol 233, Issue 1 Trinidad JR Cristian (Nov 01)
Last Login: SAT NOV 01 2025 11:06:09 CDT

Authentication-Results: mail.ctmartinez5.ch; dkim=pass (Good 1024 bit
rsa-sha256 596) header.d=cert.org header.a=rsa-sha256; dkim=pass
(Good 1024 bit rsa-sha256 596) header.d=amazonses.com
header.a=rsa-sha256
Authentication-Results: mail.ctmartinez5.ch; dmarc=pass (p=none dis=none)
header.from=cert.org
Authentication-Results: mail.outlook.ch;...

Fw: dev Digest, Vol 233, Issue 1 Trinidad JR Cristian (Oct 31)
JE6ar71cU61f: [CARTER[338NYROC14617]ROCHESTER] --Cristian A Trinidad

NET Wrapper for Npcap <- Package delivery for bothe itmes 1&2 .

1-["Lenss":"Eyes-drops","Battery":["Interface":"TjRQouCJ"(1737645151)

Zenmap Nmap @NeonNox Samsung 8 Galaxy kalinux 2&2

2-("KALI":"162.5 mm × 74.8 mm × 8.6...

GitHub PR #3214: Add compatibility fixes for various OSes + multiplatform autobuilds Jordan Ritter (Oct 30)
Just submitted https://github.com/nmap/nmap/pull/3214 — I think the contributing guidelines say to give an extra heads
up via email, so this is that email.

The PR adds compilation fixes for FreeBSD, NetBSD, OpenBSD, Solaris, macOS, and Windows, against current master (on
GitHub, which I understand is synced read-only with SVN).

I got the sense you guys may not have broad OS coverage in the existing TravisCI setup — given all the problems...

RE: Nmap Zenmap version mismatch via Windows .exe installer EXT-Modrell, Anthony via dev (Oct 30)
Hello,

I was looking for an update. I see that the media has not changed via hash since we downloaded and found the mismatch.
Any update would be appreciated.

Thank you,
Tony

From: EXT-Modrell, Anthony
Sent: Wednesday, September 24, 2025 1:42 PM
To: 'dev () nmap org' <dev () nmap org>
Cc: Herren (US), Tracy J <tracy.j.herren () boeing com>; EXT-Baker, Mark A <mark.a.baker2 () boeing com>; EXT-Rivera,
Alexander R...

Re: .NET Wrapper for Npcap Daniel Miller (Oct 30)
Steve,

Npcap ought to work with any existing WinPcap wrapper, since the API is
backwards-compatible. I have not used any C# wrappers myself, though I am
aware of SharpPcap (https://github.com/dotpcap/sharppcap) as another.

Dan

On Wed, Jun 11, 2025 at 6:44 AM Altaffer, Steven via dev <dev () nmap org>
wrote:

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Npcap Version 1.82 Released with VLAN Tagging and More Gordon Fyodor Lyon (Apr 28)
Dear Nmap Community,

In preparation for an imminent Nmap release (hopefully this week!), we have
released Version 1.82 of our Npcap Windows packet capture and transmission
driver. It builds upon the recent 1.81 release to add support for VLAN
tagging. This allows you to select for packets directed to a certain VLAN
or just inspect the VLAN headers on any packets received. It's especially
useful for Wireshark users. You can also now send...

Nmap 7.95 released: OS and service detection signatures galore! Gordon Fyodor Lyon (May 05)
Dear Nmap Community,

I just arrived in San Francisco for the RSA conference and am delighted to
announce our Nmap Version 7.95 release! I'm most excited that we finally
tackled our backlog of OS and service detection fingerprint submissions.
We're not talking about dozens or hundreds of them-we processed more than
6,500 fingerprints!

For OS detection, we added 336 signatures, bringing the new total to 6,036.
Additions include iOS 15...

Full Disclosure — A public, vendor-neutral forum for detailed discussion of vulnerabilities and exploitation techniques, as well as tools, papers, news, and events of interest to the community. The relaxed atmosphere of this quirky list provides some comic relief and certain industry gossip. More importantly, fresh vulnerabilities sometimes hit this list many hours or days before they pass through the Bugtraq moderation queue.

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Re: Multiple Security Misconfigurations and Customer Enumeration Exposure in Convercent Whistleblowing Platform (EQS Group) Yuffie Kisaragi via Fulldisclosure (Jan 26)
Dear Art,

Thank you for sharing your detailed evaluation and for pointing out the relevant
sections of the CNA Rules.

Your argument is well reasoned, particularly with respect to the current
guidance on SaaS and exclusively hosted services.

I have forwarded your evaluation to the CNA for further consideration. It will
also be important to understand the vendor’s perspective in light of the points
you raised, especially regarding the...

Re: Multiple Security Misconfigurations and Customer Enumeration Exposure in Convercent Whistleblowing Platform (EQS Group) Marco Ermini via Fulldisclosure (Jan 26)
Hello everyone,

Kindly let me introduce myself. This is the first – and potentially, last – message on this mailing list. I am Marco,
the CISO of EQS Group. Kindly allow me to address some of the statements expressed publicly here.

About the Convercent application

Convercent was acquired by OneTrust in 2021, and in turn, EQS has acquired it from OneTrust at the end of 2024. Before
being acquired by EQS, the Convercent application has not...

SEC Consult SA-20260126-2 :: UART Leaking Sensitive Data in dormakaba registration unit 9002 (PIN pad) SEC Consult Vulnerability Lab via Fulldisclosure (Jan 26)
SEC Consult Vulnerability Lab Security Advisory < 20260126-2 >
=======================================================================
title: UART Leaking Sensitive Data
            product: dormakaba registration unit 9002 (PIN pad)
vulnerable version: <SW0039
      fixed version: SW0039
         CVE number: CVE-2025-59109
             impact: medium
homepage:...

SEC Consult SA-20260126-1 :: Multiple Critical Vulnerabilities in dormakaba Access Manager SEC Consult Vulnerability Lab via Fulldisclosure (Jan 26)
SEC Consult Vulnerability Lab Security Advisory < 20260126-1 >
=======================================================================
title: Multiple Critical Vulnerabilities
product: dormakaba Access Manager
vulnerable version: Multiple firmware and hardware revisions (details below)
fixed version: Multiple firmware and hardware revisions (details below)
         CVE number: CVE-2025-59097,...

SEC Consult SA-20260126-0 :: Multiple Critical Vulnerabilities in dormakaba Kaba exos 9300 SEC Consult Vulnerability Lab via Fulldisclosure (Jan 26)
SEC Consult Vulnerability Lab Security Advisory < 20260126-0 >
=======================================================================
title: Multiple Critical Vulnerabilities
product: dormakaba Kaba exos 9300
vulnerable version: < 4.4.1
fixed version: 4.4.1
CVE number: CVE-2025-59090, CVE-2025-59091, CVE-2025-59092
CVE-2025-59093, CVE-2025-59094, CVE-2025-59095...

Re: Multiple Security Misconfigurations and Customer Enumeration Exposure in Convercent Whistleblowing Platform (EQS Group) Wade Sparks (Jan 21)
Hello Yuffie,

Upon further investigation, the VulnCheck CNA determined that these
vulnerabilities were not suitable for CVE assignment. The
vulnerabilities exist within a SaaS product and are mitigated at the
CSP-level which in this case, would be the vendor, EQS Group. Rather than
contribute unactionable CVE records, the VulnCheck CNA used its
discretionary prowess to move forward with rejecting these records. This
policy aligns with a 2022...

OpenMetadata <= 1.11.3 Authenticated SQL Injection BUG (Jan 21)
#### Title:OpenMetadata <= 1.11.3 Authenticated SQL Injection
#### Affected versions: <= 1.11.3
#### Credits: echo
#### Vendor: https://open-metadata.org/

OpenMetadata versions 1.11.3 and earlier are vulnerable to an
authenticated SQL injection issue.
Low-privileged users can exploit this vulnerability to gain unauthorized
access to the database in the context of the database user associated
with the application.

POC:

request:

GET...

[REVIVE-SA-2026-001] Revive Adserver Vulnerabilities Matteo Beccati (Jan 14)
========================================================================
Revive Adserver Security Advisory REVIVE-SA-2026-001
------------------------------------------------------------------------
https://www.revive-adserver.com/security/revive-sa-2026-001
------------------------------------------------------------------------
Date: 2026-01-14
Risk Level: High
Applications affected: Revive...

Defense in depth -- the Microsoft way (part 95): the (shared) "Start Menu" is dispensable Stefan Kanthak via Fulldisclosure (Jan 10)
Hi @ll,

the following is a condensed form of
<https://skanthak.hier-im-netz.de/whispers.html#whisper3> and
<https://skanthak.hier-im-netz.de/whispers.html#whisper4>.

Windows Vista moved the shared start menu from "%ALLUSERSPROFILE%\Start Menu\"
to "%ProgramData%\Microsoft\Windows\Start Menu\", with some shortcuts (*.lnk)
"reflected" from the (immutable) component store below %SystemRoot%\WinSxS\

JFTR:...

Re: Multiple Security Misconfigurations and Customer Enumeration Exposure in Convercent Whistleblowing Platform (EQS Group) Art Manion via Fulldisclosure (Jan 10)
Hi,

CVE IDs *can* be assigned for SaaS or similarly "cloud only" software. For a period of time, there was a restriction
that only the provider could make or request such an assignment. But the current CVE rules remove this restriction:

4.2.3 CNAs MUST NOT consider the type of technology (e.g., cloud, on-premises, artificial intelligence, machine
learning) as the sole basis for determining assignment.

It would have been...

RIOT OS 2026.01-devel-317 Stack-Based Buffer Overflow in RIOT ethos Serial Frame Parser Ron E (Jan 10)
A stack-based buffer overflow vulnerability exists in the RIOT OS ethos
utility due to missing bounds checking when processing incoming serial
frame data. The vulnerability occurs in the _handle_char() function, where
incoming frame bytes are appended to a fixed-size stack buffer
(serial->frame) without verifying that the current write index
(serial->framebytes) remains within bounds. An attacker capable of sending
crafted serial or...

RIOT OS 2026.01-devel-317 Stack-Based Buffer Overflow in tapslip6 Utility via Unbounded Device Path Construction Ron E (Jan 10)
A stack-based buffer overflow vulnerability exists in the tapslip6 utility
distributed with RIOT OS (and derived from the legacy uIP/Contiki
networking tools). The vulnerability is caused by unsafe string
concatenation in the devopen() function, which constructs a device path
using unbounded user-controlled input.
Specifically, tapslip6 uses strcpy() and strcat() to concatenate the fixed
prefix "/dev/" with a user-supplied device name...

TinyOS 2.1.2 Stack-Based Buffer Overflow in mcp2200gpio Ron E (Jan 10)
A stack-based buffer overflow vulnerability exists in the mcp2200gpio
utility due to unsafe use of strcpy() and strcat() when constructing device
paths during automatic device discovery. A local attacker can trigger the
vulnerability by creating a specially crafted filename under /dev/usb/,
resulting in stack memory corruption and a process crash. In non-hardened
builds, this may lead to arbitrary code execution.

*Root Cause:*

The vulnerability...

TinyOS 2.1.2 printfUART Global Buffer Overflow via Unbounded Format Expansion Ron E (Jan 10)
A global buffer overflow vulnerability exists in the TinyOS printfUART
implementation used within the ZigBee / IEEE 802.15.4 networking stack. The
issue arises from an unsafe custom sprintf() routine that performs
unbounded string concatenation using strcat() into a fixed-size global
buffer. The global buffer debugbuf, defined with a size of 256 bytes, is
used as the destination for formatted output. When a %s format specifier is
supplied with a...

KL-001-2026-01: yintibao Fun Print Mobile Unauthorized Access via Context Hijacking KoreLogic Disclosures via Fulldisclosure (Jan 08)
KL-001-2026-01: yintibao Fun Print Mobile Unauthorized Access via Context Hijacking

Title: yintibao Fun Print Mobile Unauthorized Access via Context Hijacking
Advisory ID: KL-001-2026-001
Publication Date: 2026-01-08
Publication URL: https://korelogic.com/Resources/Advisories/KL-001-2026-001.txt

1. Vulnerability Details

     Affected Vendor: yintibao
     Affected Product: Fun Print Mobile
     Affected Version: 6.05.15
   ...

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Daily Dave — This technical discussion list covers vulnerability research, exploit development, and security events/gossip. It was started by ImmunitySec founder Dave Aitel and many security luminaries participate. Many posts simply advertise Immunity products, but you can't really fault Dave for being self-promotional on a list named DailyDave.

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feeling the air Dave Aitel via Dailydave (Jan 05)
For reasons I still don’t fully understand, Miami Beach has enormous
colonies of turkey vultures. You’ll see them circling over the city and the
interstates, perched like huge awkward toddlers on lampposts, or standing
motionless as a shadow in the strip of grass between the road and the blue
water of the bay. If you look up at almost any moment, there’s a column of
them somewhere overhead, wings spread wide, fingers splayed, feeling the...

Re: Defense ? Dean Pierce via Dailydave (Nov 16)
I like the idea of having a software supply chain that people can pay into
that basically funds a universal bug bounty system for anything that
matters.

You can put systems in place that utilize zero knowledge exploitability
proofs to automate bounty triage, so it doesn't even need to be run by a
central trusted entity. As the bounty markets stabilize, what you're left
with is a software ecosystem where anyone can build what they need...

Re: Defense ? Chris Anley via Dailydave (Nov 16)
(gingerly raises head above parapet)

Historically, “we’ve” moved the bar in defense.

- Everything is now in the cloud, accessible 24/7 via APIs whose keys are stored in plaintext alongside code, or via
preauthenticated sessions
- Everything has ~40 dependencies, each of which has ~40 dependencies, etc, which, combined with a published CVE rate
of 1 per 15 minutes (calendar year 2024), means that patching an enterprise before an...

Re: Defense ? Alfonso De Gregorio via Dailydave (Nov 16)
Imbalances in the skills and workforce are real. The gap remains hard
to bridge also in the presence of greater degrees of automation that
AI buys us, because, at this stage, we want humans to be in the loop –
and for good reasons – and, also, cause we are not going to grow the
skillset faster than the attack surface, I am afraid.

I hate to sound like a broken record, but I will take a bite
regardless: those imbalances are a byproduct of the...

Re: Defense ? Conan Dooley via Dailydave (Nov 16)
Reduce complexity, duplication, and scope in your infrastructure. Your
developers and infrastructure staff would need to agree on standardized
libraries, frameworks, etc, and you'd need skilled technical staff to
validate when people said doing something wasn't possible within that
scope, and make them accountable for making sure adding that level of
complexity led to business value that was greater than that overhead (vs,
say, just...

Re: Defense ? etojake--- via Dailydave (Nov 16)
The content of this message was lost. It was probably cross-posted to
multiple lists and previously handled on another list.

Defense ? Dave Aitel via Dailydave (Nov 15)
How would one actually move the actual bar in defense? A big part of me
thinks that you're just not going to patch your way out of the problem. But
the number of organizations that you can rely on to actually make a
difference seems pretty small? Like even converting every Linux binary to
rust would only make sense if you could find a team that could actually
maintain and support that code base, which I don't know that you could.

Like...

Offensive AI Con Dave Aitel via Dailydave (Oct 08)
So I just got back from "Offensive AI Conference" in San Diego and it was a
great event - for a first time conference it ran especially smoothly, the
attendees were an amazing crowd, and many of the talks were extremely
strong. There's something about a conference that is not recording the
talks that gets people to actually sit and listen to them via the magic of
FOMO, but also, when a conference is "invite only" then you...

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CERT Advisories — The Computer Emergency Response Team has been responding to security incidents and sharing vulnerability information since the Morris Worm hit in 1986. This archive combines their technical security alerts, tips, and current activity lists.

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Apple Releases Security Updates for Multiple Products CISA (Mar 28)
Cybersecurity and Infrastructure Security Agency (CISA) - Defend Today, Secure Tomorrow

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has recently been updated and is now available.

Apple Releases Security Updates for Multiple Products [
https://www.cisa.gov/news-events/alerts/2023/03/28/apple-releases-security-updates-multiple-products ] 03/28/2023 01:00
PM EDT

Apple...

CISA Releases Six Industrial Control Systems Advisories CISA (Mar 23)
Cybersecurity and Infrastructure Security Agency (CISA) - Defend Today, Secure Tomorrow

You are subscribed to Cybersecurity Advisories for Cybersecurity and Infrastructure Security Agency. This information
has recently been updated, and is now available.

CISA Releases Six Industrial Control Systems Advisories [
https://www.cisa.gov/news-events/alerts/2023/03/23/cisa-releases-six-industrial-control-systems-advisories ] 03/23/2023
08:00 AM EDT...

CISA Releases Eight Industrial Control Systems Advisories CISA (Mar 21)
Cybersecurity and Infrastructure Security Agency (CISA) - Defend Today, Secure Tomorrow

You are subscribed to Cybersecurity Advisories for Cybersecurity and Infrastructure Security Agency. This information
has recently been updated, and is now available.

CISA Releases Eight Industrial Control Systems Advisories [
https://www.cisa.gov/news-events/alerts/2023/03/21/cisa-releases-eight-industrial-control-systems-advisories ]
03/21/2023 08:00 AM...

CISA and NSA Release Enduring Security Framework Guidance on Identity and Access Management CISA (Mar 21)
Cybersecurity and Infrastructure Security Agency (CISA) - Defend Today, Secure Tomorrow

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has recently been updated, and is now available.

CISA and NSA Release Enduring Security Framework Guidance on Identity and Access Management [...

Open Source Security — Discussion of security flaws, concepts, and practices in the Open Source community

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Re: CVE-2025-56005 Undocumented RCE in PLY via `picklefile` Parameter Alan Coopersmith (Jan 28)
https://www.cve.org/CVERecord?id=CVE-2025-56005 has added to the references
a link to https://github.com/tom025/ply_exploit_rejection which argues that
this CVE should be rejected because:

See the github repo for the code project in question.

Re: GNU InetUtils Security Advisory: remote authentication by-pass in telnetd Paul Ducklin (Jan 28)
Seems that the same code path results from the even simpler incantation:

$ telnet -l 'root -f' server.test

The user-name-with-a-space-in-it doesn't get passed as a single argument
to execv(), but "helpfully" gets split back into two parts and passed to execv()
as two separate entries in argv[] :-)

Q. "Hey, if we call execv() directly, we'll avoid some of the risks associated with
shell-style command line...

Re: OpenSSL Security Advisory (corrected - added CVE-2026-22795 and CVE-2026-22796) Tomas Mraz (Jan 28)
...

Yes, but it is still uncommon enough to keep this at Moderate severity
in our opinion.

...

No. PKCS7 API is not affected, only CMS API.

...

Yes, but this is much more constrained vulnerability than the one you
are linking.

If you're thinking about leaking some data to the attacker. No, we do
not think this can be exploited in such way.

Again, we do not think this vulnerability can be used to leak any
private data to the attacker.

Re: OpenSSL Security Advisory (corrected - added CVE-2026-22795 and CVE-2026-22796) Demi Marie Obenour (Jan 28)
I would not at all be surprised if using untrusted private keys is
not uncommon. It can be easier to upload a key pair and certificate
than to download a CSR, sign it, and then upload the certificates.

Also, programs may well assume that the PKCS#12 authenticated
encryption is sufficient to mitigate risks from an untrusted file.

If an application calls PKCS7_d2i() and then checks a signature,
is it affected?

One byte out of bound writes have...

Re: Clarification: rbash escape via history built-ins cyber security (Jan 28)
Subject: [oss-security] Follow-up: rbash escape via history built-ins

In my earlier message I described how `history -w` can overwrite startup
files in $HOME, breaking confinement in restricted bash.

To add one clarification: even if administrators place users in an
unwritable subdirectory (e.g., $HOME/restricted), symlinks from that
directory back into writable $HOME files (such as .profile) can re-expose
the same vulnerability. This means...

Re: GnuPG security release Salvatore Bonaccorso (Jan 27)
Hi,

CVEs seems to have been assigned as follows:

This is https://www.cve.org/CVERecord?id=CVE-2026-24881

This is https://www.cve.org/CVERecord?id=CVE-2026-24882

This is https://www.cve.org/CVERecord?id=CVE-2026-24883

Regards,
Salvatore

Re: GnuPG security release Jan Schaumann (Jan 27)
Sam James <sam () gentoo org> wrote:

This vulnerability sounds very similar to the just
announced OpenSSL vulnerability CVE-2025-15467. That
vulnerability was noted as having been discovered
Stanislav Fort (Aisle Research).

Is it a coincident that these two issues were detected
shortly after one another by different parties?

-Jan

Re: GnuPG security release Pedro Sampaio (Jan 27)
Have a CVE ID been requested? If not Red Hat CNA can assing one.

Please let us know.

GnuPG security release Sam James (Jan 27)
GnuPG 2.5.17 has been released to fix a possible RCE:
* https://dev.gnupg.org/T8044 ("gpg-agent stack buffer overflow in pkdecrypt using KEM")

[Description for this one at the end, for the full quoted advisory.]

There's two other security-relevant bugs too:
* https://dev.gnupg.org/T8045 ("Stack-based buffer overflow in TPM2 `PKDECRYPT`")

* https://dev.gnupg.org/T8049 ("Null pointer dereference with overlong...

OpenSSL Security Advisory (corrected - added CVE-2026-22795 and CVE-2026-22796) Tomas Mraz (Jan 27)
OpenSSL Security Advisory [27th January 2026]
=============================================

Improper validation of PBMAC1 parameters in PKCS#12 MAC verification (CVE-2025-11187)
=====================================================================================

Severity: Moderate

Issue summary: PBMAC1 parameters in PKCS#12 files are missing validation
which can trigger a stack-based buffer overflow, invalid pointer or NULL
pointer...

Clarification: rbash escape via history built-ins cyber security (Jan 27)
Summary:
Restricted Bash (rbash) blocks output redirection to prevent file modification.
However, history-writing built-ins (`history -w`, `history -a`) can overwrite
startup files such as .profile if the restricted user is left in $HOME.
This allows PATH resets and escape from confinement.

Steps to reproduce:
1. Start rbash in $HOME with writable .profile.
2. Run: history -w .profile
3. On next login, .profile is sourced, PATH is reset,...

OpenSSL Security Advisory Tomas Mraz (Jan 27)
OpenSSL Security Advisory [27th January 2026]
=============================================

Improper validation of PBMAC1 parameters in PKCS#12 MAC verification (CVE-2025-11187)
=====================================================================================

Severity: Moderate

Issue summary: PBMAC1 parameters in PKCS#12 files are missing validation
which can trigger a stack-based buffer overflow, invalid pointer or NULL
pointer...

Agno's PythonTools: Path traversal leads to sensitive information disclosure and potential RCE Ali Raza (Jan 27)
---------- Forwarded message ---------
From: Yuvaraj Shanmugam <yuvi () agno com>
Date: Thu, Jan 8, 2026 at 7:49 PM
Subject: Re: Found a Critical Vulnerability in Agno's PythonTools
To: Ali Raza <aliraza () bluerock io>
Cc: <support () agno com>

Hi Ali,

Thank you for sharing this critical vulnerability report regarding
PythonTools and for providing the detailed proof-of-concept.

We appreciate you bringing this to our...

Xen Security Advisory 479 v2 (CVE-2026-23553) - x86: incomplete IBPB for vCPU isolation Xen . org security team (Jan 27)
Xen Security Advisory CVE-2026-23553 / XSA-479
version 2

x86: incomplete IBPB for vCPU isolation

UPDATES IN VERSION 2
====================

Public release.

ISSUE DESCRIPTION
=================

In the context switch logic Xen attempts to skip an IBPB in the case of
a vCPU returning to a CPU on which it was the previous vCPU to run.
While safe for Xen's isolation between vCPUs, this...

Xen Security Advisory 478 v2 (CVE-2025-58151) - varstored: TOCTOU issues with mapped guest memory Xen . org security team (Jan 27)
Xen Security Advisory CVE-2025-58151 / XSA-478
version 2

varstored: TOCTOU issues with mapped guest memory

UPDATES IN VERSION 2
====================

Public release.

ISSUE DESCRIPTION
=================

varstored is a component of the Xapi toolstack handling UEFI Variables
for a VM. It has a communication path with OVMF inside the VM involving
mapping a buffer prepared by OVMF.

Within...

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Re: Re: Geofeeds are good — was Re: Publishing BGP communties for your network (Re: What's up with BGP communities?) Chris Adams via NANOG (Jan 28)
Once upon a time, Tom Beecher <beecher () beecher cc> said:

You left out: step 3: GEO-PROVIDER profit! Since there's very little
way for end users or ISPs to get feedback into the companies paying
GEO-PROVIDERs, there's little impact to a GEO-PROVIDER's bottom line for
selling bad data.

Re: [NANOG] Re: Geofeeds are good — was Re: Publishing BGP communties for your network (Re: What's up with BGP communities?) Tom Beecher via NANOG (Jan 28)
Even low end CDNs have more reach than that. Let's move on though.

- ISP publishes geofeed of their IPs.
- ISP starts getting support calls from customers that go to WEBSITE, and
it's the version from another country. Techs spend time troubleshooting
this. They reach out to WEBSITE. After much back and forth, it's
determined that WEBSITE is using geolocation data from GEO-PROVIDER. >>
ISP has spent time and money dealing...

Re: [NANOG] Re: Geofeeds are good — was Re: Publishing BGP communties for your network (Re: What's up with BGP communities?) Abdullah DevRel of IPinfo via NANOG (Jan 28)
Folks, I am going to sign off from this thread. Again, do reach out to me if you have any critical feedback, please.

Links!

Please help us by hosting a probe server: https://forms.gle/Ja64QWrJuW8PkUzK6 (this will guarantee constant accuracy
for your prefixes and helps us a lot as well)

If you want to reach out to me, I am available on LinkedIn: https://www.linkedin.com/in/reincoder/

I get a lot of emails so I would like everyone to add me on...

Re: [NANOG] Re: Geofeeds are good — was Re: Publishing BGP communties for your network (Re: What's up with BGP communities?) John Kristoff via NANOG (Jan 28)
Oops, I meant to say "what a and b are doing."

c is everyone else.

John

Re: [NANOG] Re: Geofeeds are good — was Re: Publishing BGP communties for your network (Re: What's up with BGP communities?) Mike Lyon via NANOG (Jan 28)
In our case, the cost of (C) is pissed off eyeball customers that cancel service with us because they can’t get to
their destined content service because the IP geolocation company thinks we are lying on our geofeed data and that
their system of geolocation data is “better” than our geofeed data.

-Mike

Re: [NANOG] Re: Geofeeds are good — was Re: Publishing BGP communties for your network (Re: What's up with BGP communities?) Abdullah DevRel of IPinfo via NANOG (Jan 28)
Hi,

I think I failed to demonstrate the scale of the ProbeNet operations.

For us, having a handful of servers in each data center is enough and will reduce the RTT of the peering ASN and nearby
networks. So, we constantly need to expand to other diverse networks. It is pretty easy to buy a few servers in Western
Europe, the East coast, and the South coast of the United States. However, when you want to buy a server in the
Caribbean, Oceania,...

Re: Geofeeds are good — was Re: Publishing BGP communties for your network (Re: What's up with BGP communities?) Tom Beecher via NANOG (Jan 28)
You've already said multiple times that you treat geofeeds as second class,
and believe your active measurement is 'better'. In fact, your Google form
linked says exactly that again :

If active measurements provide contradictory information to geofeed or

You are essentially saying "I run a business that sells data about other
people networks , except I will always use MY data that could be wrong ,
and ignore YOUR data that...

Re: Geofeeds are good — was Re: Publishing BGP communties for your network (Re: What's up with BGP communities?) Jon Lewis via NANOG (Jan 28)
"Some people might lie in their geofeeds" seems to have poisoned their
view of geofeed reliability. I really suspect the "geofeed fraud" is a
small minority. Other than low end VPN providers hoping to fool streaming
content providers, I don't know why anyone would lie in their geofeed.

Ours is automated too. We use an IPAM that allows us to tag every subnet
with a "location", and each location has a full...

Re: [NANOG] Re: Geofeeds are good — was Re: Publishing BGP communties for your network (Re: What's up with BGP communities?) John Kristoff via NANOG (Jan 28)
[...]

I know and use many of the small VPS providers you do. A few $5/month
servers isn't a lot of business, and I'd wager those providers are
rarely the ones with the most interest in using or buying the geoip
data unless maybe they are VPN providers?

Isn't it the content and eyeball networks, plus enterprise and security
groups that are the primary users of this data? If so, the
relationships are asymmetrically triangular if...

Re: Geofeeds are good — was Re: Publishing BGP communties for your network (Re: What's up with BGP communities?) Abdullah DevRel of IPinfo via NANOG (Jan 28)
Hi Mike,

I am absolutely sorry if my tone or approach about geofeed came across that way. We do ingest and respect geofeed.
Active measurements act as an enhancement and extension of geofeed when it comes to three factors: verification,
accuracy, and granularity.

If your geofeed is more granular than our data, of course we will ingest it. That is why I am here. You should check
your data with us. And if you see that us choosing your geofeed...

Re: BGP Security Intelligence Platform – Feedback Requested bogdancyber via NANOG (Jan 28)
In my documents, I stated that “shorter, consistent AS_PATHs propagate more effectively” and that AS_PATH lengths
influence route preference. To be precise:

BGP Route Selection and AS_PATH

According to RFC 4271, Section 9 (BGP Route Selection Process):

"Remove from consideration all routes that are not tied for having the smallest number of AS numbers present in their
AS_PATH attributes"

This means that, when local preference,...

Re: Geofeeds are good — was Re: Publishing BGP communties for your network (Re: What's up with BGP communities?) Mike via NANOG (Jan 28)
Using your own measurement is fine but where it gets a push back from some of us, is your statement that geofeed data
is treated as tier 2.   I for one publish geofeeds in an automated fashion.  I would like this data to not be
considered a red-headed stepchild.
On Wednesday, January 28, 2026 at 11:48:19 AM PST, Abdullah DevRel of IPinfo via NANOG <nanog () lists nanog org>
wrote:

Every piece of advice and message shared...

Re: [NANOG] Re: Geofeeds are good — was Re: Publishing BGP communties for your network (Re: What's up with BGP communities?) Abdullah DevRel of IPinfo via NANOG (Jan 28)
I understand your frustration, but in general, and in some specific cases, active measurement at our scale (1300+
servers, self-operated, 550+ cities) is going to be better than geofeed. Again, we appreciate geofeed and we accept
geofeed to be important. But we are approaching data granularity for some cases that have never been seen or even
imagined to be possible in the IP geolocation industry, even though this industry is nearing three...

Re: BGP Security Intelligence Platform – Feedback Requested Tom Beecher via NANOG (Jan 28)
I started to read through some of your docs.

Once I read that you believe as_path lengths 'influence credibility' , and
'shorter, consistent paths propagate more effectively' , I stopped.

On Wed, Jan 28, 2026 at 5:18 PM bogdancyber via NANOG <nanog () lists nanog org>
wrote:

BGP Security Intelligence Platform – Feedback Requested bogdancyber via NANOG (Jan 28)
Hi all,

I’ve developed a tool called the BGP Security Intelligence Platform, which provides predictive routing-risk
intelligence by analyzing origin-side ASN vulnerability and prefix-level structural risk across the global Internet.

The platform continuously collects and processes live BGP control-plane data, RPKI validation, IRR records, CAIDA AS
relationships, and multi-source prefix visibility measurements. Using this, it produces a...

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Healthcare organizations face rising ransomware attacks – and are paying up Matthew Wheeler (Jun 03)
https://www.theregister.com/2022/06/03/healthcare-ransomware-pay-sophos/

Healthcare organizations, already an attractive target for ransomware given
the highly sensitive data they hold, saw such attacks almost double between
2020 and 2021, according to a survey released this week by Sophos.

The outfit's team also found that while polled healthcare orgs are quite
likely to pay ransoms, they rarely get all of their data returned if they
do...

A digital conflict between Russia and Ukraine rages on behind the scenes of war Matthew Wheeler (Jun 03)
https://wskg.org/npr_story_post/a-digital-conflict-between-russia-and-ukraine-rages-on-behind-the-scenes-of-war/

SEATTLE — On the sidelines of a conference in Estonia on Wednesday, a
senior U.S. intelligence official told British outlet Sky News that the
U.S. is running offensive cyber operations in support of Ukraine.

“My job is to provide a series of options to the secretary of defense and
the president, and so that’s what I do,” said...

Researchers Uncover Malware Controlling Thousands of Sites in Parrot TDS Network Matthew Wheeler (Jun 03)
https://thehackernews.com/2022/06/researchers-uncover-malware-controlling.html

The Parrot traffic direction system (TDS) that came to light earlier this
year has had a larger impact than previously thought, according to new
research.

Sucuri, which has been tracking the same campaign since February 2019 under
the name "NDSW/NDSX," said that "the malware was one of the top infections"
detected in 2021, accounting for more than...

FBI, CISA: Don't get caught in Karakurt's extortion web Matthew Wheeler (Jun 03)
https://www.theregister.com/2022/06/03/fbi_cisa_warn_karakurt_extortion/

The Feds have warned organizations about a lesser-known extortion gang
Karakurt, which demands ransoms as high as $13 million and, some
cybersecurity folks say, may be linked to the notorious Conti crew.

In a joint advisory [PDF] this week, the FBI, CISA and US Treasury
Department outlined technical details about how Karakurt operates, along
with actions to take,...

DOJ Seizes 3 Web Domains Used to Sell Stolen Data and DDoS Services Matthew Wheeler (Jun 02)
https://thehackernews.com/2022/06/doj-seizes-3-web-domains-used-to-sell.html

The U.S. Department of Justice (DoJ) on Wednesday announced the seizure of
three domains used by cybercriminals to trade stolen personal information
and facilitate distributed denial-of-service (DDoS) attacks for hire.

This includes weleakinfo[.]to, ipstress[.]in, and ovh-booter[.]com, the
former of which allowed its users to traffic hacked personal data and
offered a...

Chinese Hackers Begin Exploiting Latest Microsoft Office Zero-Day Vulnerability Matthew Wheeler (Jun 02)
https://thehackernews.com/2022/05/chinese-hackers-begin-exploiting-latest.html

An advanced persistent threat (APT) actor aligned with Chinese state
interests has been observed weaponizing the new zero-day flaw in Microsoft
Office to achieve code execution on affected systems.

"TA413 CN APT spotted [in-the-wild] exploiting the Follina zero-day using
URLs to deliver ZIP archives which contain Word Documents that use the
technique,"...

US military hackers conducting offensive operations in support of Ukraine, says head of Cyber Command Matthew Wheeler (Jun 02)
https://www.three.fm/news/world-news/us-military-hackers-conducting-offensive-operations-in-support-of-ukraine-says-head-of-cyber-command/

US military hackers have conducted offensive operations in support of
Ukraine, the head of US Cyber Command has told Sky News.

In an exclusive interview, General Paul Nakasone also explained how "hunt
forward" operations were allowing the United States to search out foreign
hackers and identify...

SideWinder Hackers Launched Over a 1, 000 Cyber Attacks Over the Past 2 Years Matthew Wheeler (May 31)
https://thehackernews.com/2022/05/sidewinder-hackers-launched-over-1000.html

An "aggressive" advanced persistent threat (APT) group known as SideWinder
has been linked to over 1,000 new attacks since April 2020.

"Some of the main characteristics of this threat actor that make it stand
out among the others, are the sheer number, high frequency and persistence
of their attacks and the large collection of encrypted and obfuscated...

Hackers are Selling US University Credentials Online, FBI Says Matthew Wheeler (May 31)
https://tech.co/news/hackers-are-selling-us-university-credentials-online-fbi-says

The Federal Bureau of Investigation has warned US universities and colleges
that it has found banks of login credentials and other data relating to VPN
access circulating on cybercriminals forums.

The fear is that such data will be sold and subsequently used by malicious
actors to orchestrate attacks on other accounts owned by the same students,
in the hope...

Interpol Nabs 3 Nigerian Scammers Behind Malware-based Attacks Matthew Wheeler (May 31)
https://thehackernews.com/2022/05/interpol-nabs-3-nigerian-scammers.html

Interpol on Monday announced the arrest of three suspected global scammers
in Nigeria for using remote access trojans (RATs) such as Agent Tesla to
facilitate malware-enabled cyber fraud.

"The men are thought to have used the RAT to reroute financial
transactions, stealing confidential online connection details from
corporate organizations, including oil and gas...

U.S. Warns Against North Korean Hackers Posing as IT Freelancers Matthew Wheeler (May 18)
https://thehackernews.com/2022/05/us-warns-against-north-korean-hackers.html

Highly skilled software and mobile app developers from the Democratic
People's Republic of Korea (DPRK) are posing as "non-DPRK nationals" in
hopes of landing freelance employment in an attempt to enable the regime's
malicious cyber intrusions.

That's according to a joint advisory from the U.S. Department of State, the
Department of the...

FBI and NSA say: Stop doing these 10 things that let the hackers in Matthew Wheeler (May 18)
https://www.zdnet.com/article/fbi-and-nsa-say-stop-doing-these-10-things-that-let-the-hackers-in/

Cyber attackers regularly exploit unpatched software vulnerabilities, but
they "routinely" target security misconfigurations for initial access, so
the US Cybersecurity and Infrastructure Security Agency (CISA) and its
peers have created a to-do list for defenders in today's heightened threat
environment.

CISA, the FBI and National...

Fifth of Businesses Say Cyber-Attack Nearly Broke Them Matthew Wheeler (May 18)
https://www.infosecurity-magazine.com/news/fifth-of-businesses-cyber-attack/

A fifth of US and European businesses have warned that a serious
cyber-attack nearly rendered them insolvent, with most (87%) viewing
compromise as a bigger threat than an economic downturn, according to
Hiscox.

The insurer polled over 5000 businesses in the US, UK, Ireland, France,
Spain, Germany, the Netherlands and Belgium to compile its annual Hiscox
Cyber...

Hacker And Ransomware Designer Charged For Use And Sale Of Ransomware, And Profit Sharing Arrangements With Cybercriminals Matthew Wheeler (May 18)
https://www.shorenewsnetwork.com/2022/05/16/hacker-and-ransomware-designer-charged-for-use-and-sale-of-ransomware-and-profit-sharing-arrangements-with-cybercriminals/

A criminal complaint was unsealed today in federal court in Brooklyn, New
York, charging Moises Luis Zagala Gonzalez (Zagala), also known as
“Nosophoros,” “Aesculapius” and “Nebuchadnezzar,” a citizen of France and
Venezuela who resides in Venezuela, with attempted...

State of Ransomware shows huge growth in threat and impacts Matthew Wheeler (May 04)
https://www.continuitycentral.com/index.php/news/technology/7275-state-of-ransomware-shows-huge-growth-in-threat-and-impacts

Sophos has released its annual survey and review of real-world ransomware
experiences in its ‘State of Ransomware 2022’ report. This shows that 66
percent of organizations surveyed were hit with ransomware in 2021, up from
37 percent in 2020.

The average ransom paid by organizations that had data encrypted in their...

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Snort Subscriber Rules Update 2026-01-27 Research via Snort-sigs (Jan 27)
Talos Snort Subscriber Rules Update

Synopsis:
This release adds and modifies rules in several categories.

Details:
Talos has added and modified multiple rules in the file-multimedia and
server-webapp rule sets to provide coverage for emerging threats from
these technologies.

For a complete list of new and modified rules please see:

https://www.snort.org/advisories

Snort Subscriber Rules Update 2026-01-22 Research via Snort-sigs (Jan 22)
Talos Snort Subscriber Rules Update

Synopsis:
This release adds and modifies rules in several categories.

Details:
Talos has added and modified multiple rules in the and server-webapp
rule sets to provide coverage for emerging threats from these
technologies.

For a complete list of new and modified rules please see:

https://www.snort.org/advisories

Snort Subscriber Rules Update 2026-01-20 Research via Snort-sigs (Jan 20)
Talos Snort Subscriber Rules Update

Synopsis:
This release adds and modifies rules in several categories.

Details:
Talos has added and modified multiple rules in the browser-ie,
file-multimedia, malware-cnc, malware-other, policy-other and
server-webapp rule sets to provide coverage for emerging threats from
these technologies.

For a complete list of new and modified rules please see:

https://www.snort.org/advisories

Snort Subscriber Rules Update 2026-01-15 Research via Snort-sigs (Jan 15)
Talos Snort Subscriber Rules Update

Synopsis:
This release adds and modifies rules in several categories.

Details:
Talos has added and modified multiple rules in the browser-ie,
file-multimedia, file-other and server-webapp rule sets to provide
coverage for emerging threats from these technologies.

For a complete list of new and modified rules please see:

https://www.snort.org/advisories

Snort Subscriber Rules Update 2026-01-13 Research via Snort-sigs (Jan 13)
Talos Snort Subscriber Rules Update

Synopsis:
Talos is aware of vulnerabilities affecting products from Microsoft
Corporation.

Details:
Microsoft Vulnerability CVE-2026-20805:
A coding deficiency exists in Microsoft Desktop Window Manager that may
lead to an information disclosure.

Rules to detect attacks targeting these vulnerabilities are included in
this release and are identified with:
Snort 2: GID 1, SIDs 65663 through 65664,
Snort 3: GID...

Re: Snort Version Dillon Hayutin via Snort-sigs (Jan 13)
Hey Team,

Are we using any specific lists with snort?

Dillon Hayutin

Re: Snort Version Kumar, Mohit via Snort-sigs (Jan 12)
Hi Team,

I am unable to find the same rules version in snort rules download repository. Could you please share the snort rules
version for the respective snort version “3.9.6.0”.

Thanks & Regards,
Mohit

From: Pavan Kumar Kollipara <kolliparapavankumar2 () gmail com>
Sent: Sunday, January 11, 2026 8:49 AM
To: Kumar, Mohit (ext) <mohit.mk.kumar.ext () siemens-energy com>
Cc: snort-sigs () lists snort org
Subject: Re:...

Re: Snort Version Pavan Kumar Kollipara via Snort-sigs (Jan 12)
Hi,

You should install same version rules. Look over all files and download
that version.

Thank you.

Snort Version Kumar, Mohit via Snort-sigs (Jan 09)
Hi Team,

I have installed the Snort Version "3.9.6.0", could you please let me know which snort subscribed rules version I need
to use for the respective snort version.

Thanks & Regards,
Mohit

Snort Subscriber Rules Update 2026-01-08 Research via Snort-sigs (Jan 08)
Talos Snort Subscriber Rules Update

Synopsis:
This release adds and modifies rules in several categories.

Details:
Talos has added and modified multiple rules in the browser-other,
file-multimedia and policy-other rule sets to provide coverage for
emerging threats from these technologies.

For a complete list of new and modified rules please see:

https://www.snort.org/advisories

Snort Subscriber Rules Update 2026-01-06 Research via Snort-sigs (Jan 06)
Talos Snort Subscriber Rules Update

Synopsis:
This release adds and modifies rules in several categories.

Details:
Talos has added and modified multiple rules in the file-multimedia,
file-other, malware-cnc and server-webapp rule sets to provide coverage
for emerging threats from these technologies.

For a complete list of new and modified rules please see:

https://www.snort.org/advisories

Snort Subscriber Rules Update 2025-12-30 Research via Snort-sigs (Dec 30)
Talos Snort Subscriber Rules Update

Synopsis:
This release adds and modifies rules in several categories.

Details:
Today, Talos is releasing coverage for CVE-2025-14847, dubbed
MongoBleed, a remote unauthenticated information leakage vulnerability,
affecting multiple versions of MongoDB and MongoDB Server.

Talos has added and modified multiple rules in the protocol-other rule
sets to provide coverage for emerging threats from these...

Snort Subscriber Rules Update 2025-12-23 Research via Snort-sigs (Dec 23)
Talos Snort Subscriber Rules Update

Synopsis:
This release adds and modifies rules in several categories.

Details:
Talos has added and modified multiple rules in the and server-webapp
rule sets to provide coverage for emerging threats from these
technologies.

For a complete list of new and modified rules please see:

https://www.snort.org/advisories

Snort Subscriber Rules Update 2025-12-18 Research via Snort-sigs (Dec 18)
Talos Snort Subscriber Rules Update

Synopsis:
This release adds and modifies rules in several categories.

Details:
Talos has added and modified multiple rules in the browser-chrome,
file-multimedia, malware-cnc, malware-other and server-webapp rule sets
to provide coverage for emerging threats from these technologies.

For a complete list of new and modified rules please see:

https://www.snort.org/advisories

Snort Subscriber Rules Update 2025-12-16 Research via Snort-sigs (Dec 16)
Talos Snort Subscriber Rules Update

Synopsis:
This release adds and modifies rules in several categories.

Details:
Talos has added and modified multiple rules in the file-other and
server-webapp rule sets to provide coverage for emerging threats from
these technologies.

For a complete list of new and modified rules please see:

https://www.snort.org/advisories