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๐Ÿ‘‹ Who4mI

์ด๋™ํ•˜ (DongHa Lee)

๐ŸŽ‚ 2004.02.18 (22 y.o)

๐Ÿ“ง [email protected]

๐ŸŒ dongha.xyz

๐ŸŽฎ Discord : lee_dongha


๐Ÿง‘โ€๐Ÿ’ป I'm a Security Researcher in KR

Hi, Iโ€™m DongHa โ€” a passionate vulnerability researcher, CTF challenge author, and bug hunter with a special interest in fuzzing and AI for security. Iโ€™ve published CVEs and regularly contribute to security conferences, academic research, and open-source projects.


โœจ Masterpiece

๐Ÿ”Ž Dive into what Iโ€™ve done during a magical month:
๐Ÿ‘‰ December 2022 Activity


๐Ÿ”’ Technical Skills

  • Vuln Research: pwnable, web hacking, reversing, AI, fuzzing, crypto (PQC)
  • Languages: C, C++, Python, Rust, x86 ASM, Node.js, CUDA
  • Systems: Embedded dev, Docker, Linux Kernel

๐Ÿ“Œ Published CVEs

  • CVE-2023-43646 | CVSS 7.5 / CWE-400, CWE-1333 / ReDoS
  • CVE-2023-45827 | CVSS 9.8 / CWE-1321 / PP
  • CVE-2023-50245 | CVSS 9.8 / CWE-120 / Buffer Copy without Checking Size of Input
  • CVE-2024-23339 | CVSS 6.5 / CWE-1321 / PP
  • CVE-2024-22526 | CVSS 5.5 / CWE-120 / Buffer Copy without Checking Size of Input
  • CVE-2024-27088 | CVSS 5.5 / CWE-400, CWE-1333 / es5-ext(ECMAScript 5 extensions)
  • CVE-2024-20746 | CVSS 7.8 / CWE-787 / Adobe Premiere Pro Out-of-bounds Write
  • CVE-2024-42358 | CVSS 5.5 / CWE-835 / Loop with Unreachable Exit Condition ( DoS )
  • KVE-2024-0820 | find the gap private bug bounty
  • KVE-2024-0821 | find the gap private bug bounty
  • KVE-2024-0454 | kisa knvd report
  • CVE-2024-45870 | CVSS 6.5 / CWE-284 / Improper Access Control
  • CVE-2024-45871 | CVSS 6.3 / CWE-20 / Improper Input Validation
  • CVE-2024-45872 | CVSS 6.3 / CWE-122 / Heap-based Buffer Overflow
  • CVE-2024-44913 | CVSS 5.5 / CWE-284 / Improper Access Control
  • CVE-2024-44914 | CVSS 5.5 / CWE-284 / Improper Access Control
  • CVE-2024-44915 | CVSS 5.5 / CWE-284 / Improper Access Control
  • CVE-2025-4605 | CVSS 5.5 / CWE-789 / Autodesk MAYA 2025 memory corruption
  • CVE-2025-24184 | Apple iOS 18.3, visionOS 2.3, watchOS 11.3, tvOS 18.3, macOS Sequoia 15.3 CoreMedia Playback
  • CVE-2025-53015 | CVSS 7.5 / CWE-835 / XMP Profile bug and more...

๐Ÿ—ฃ๏ธ Presentations & Lectures

  • Fuzzing & Symbolic Execution - CCA National Information Security Club Association Seminar (2025.02)
  • Metaverse Fuzzing์œผ๋กœ 0-day ์ฐพ๊ธฐ - KUCIS ์˜๋‚จ๊ถŒ ์„ธ๋ฏธ๋‚˜ (2024.10)
  • KISA Academy ๋ฒ„๊ทธ ํ—ŒํŒ… ๋งˆ์Šคํ„ฐ ๊ณผ์ • ๋ฉ”์ธ ๊ฐ•์‚ฌ (2024.06)
  • Address Sanitizer and Out of Bound vulnerabilities - CCA Seminar (2024.03)
  • ๋™์•„๋ฆฌ ๋ชจ์˜ ํ•ดํ‚น ์Šคํ„ฐ๋”” ๊ฐ•์˜(2024)
  • ๋„คํŠธ์›Œํฌ ๋ณด์•ˆ ์ˆ˜์—… ์‹ค์Šต ์กฐ๊ต (2024)
  • ReDoS ์ทจ์•ฝ์  ํƒ์ง€ ๋„๊ตฌ์˜ ๋™ํ–ฅ ๋ถ„์„ ๋ฐ ๊ฐœ์„ ์„ ํ†ตํ•œ ์ทจ์•ฝ์  ๋ถ„์„ ์—ฐ๊ตฌ ๋ฐœํ‘œ โ€“ ํ•œ๊ตญ์ •๋ณด๋ณดํ˜ธํ•™ํšŒ (2023.11)
  • ReDoS ์ž๋™ํ™” ํƒ์ง€ ๋ฐฉ๋ฒ•๋ก  โ€“ KUCIS ์„œ๊ฒฝ๊ฐ• ์„ธ๋ฏธ๋‚˜ (2023.09)

๐Ÿ“ Papers

  • ์ฝ”ํผ์Šค ์ „์ด๋ฅผ ํ†ตํ•œ ์ƒ์šฉ ์†Œํ”„ํŠธ์›จ์–ด์— ๋Œ€ํ•œ ๋ฐ”์ด๋„ˆ๋ฆฌ ์ „์šฉ ํผ์ง• ์„ฑ๋Šฅ ํ–ฅ์ƒ | ํ•œ๊ตญ์ •๋ณด๋ณดํ˜ธํ•™ํšŒ
  • ReDoS ์ทจ์•ฝ์ ํƒ์ง€ ๋„๊ตฌ์˜ ๋™ํ–ฅ ๋ถ„์„ ๋ฐ ๊ฐœ์„ ์„ ํ†ตํ•œ ์ทจ์•ฝ์  ๋ถ„์„ ์—ฐ๊ตฌ | ํ•œ๊ตญ์ •๋ณด๋ณดํ˜ธํ•™ํšŒ
  • ํ”„๋กœํ† ํƒ€์ž… ์˜ค์—ผ ํŒจํ„ด ์กฐ์‚ฌ๋ฅผ ํ†ตํ•œ Node.js ํŒจํ‚ค์ง€ ์ทจ์•ฝ์  ๋ถ„์„ ์—ฐ๊ตฌ | ํ•œ๊ตญ์ •๋ณด๋ณดํ˜ธํ•™ํšŒ

๐Ÿš€ Projects

  • AFL++ opensource contribute
  • LKL gpu kernel driver fuzzing project (2024)
  • Hspace knights ํ™œ๋™ (2024)
  • ReBoB NodeBOB ํŒ€ (2023)
  • CTF ์ถœ์ œ ๋ฐ ์šด์˜
  • ์Šค๋งˆํŠธ๊ตํ†ต ์„œ๋น„์Šค IoT ์žฅ์น˜ ์ทจ์•ฝ์  ๋ถ„์„ ๊ณผ์ œ ์ˆ˜ํ–‰
  • ๊ธฐ์—… ๋Œ€์ƒ ๋ชจ์˜ ์นจํˆฌ/์ปจ์„คํŒ…
  • R&D ๊ณผ์ œ ๋‹ค์ˆ˜ ์ง„ํ–‰

๐Ÿ† Awards

  • ์ œ 2 ํšŒ ์™€๊ธ€์™€๊ธ€ ํ•ด์ปคํ†ค (1st place) (2024.02)
  • ๊ฐ€์ฒœ๋Œ€ํ•™๊ต ๊ฐ€์ฒœ์ธ์žฌ์ƒ (2023.11)
  • ํ•œ๊ตญ์ •๋ณด๋ณดํ˜ธํ•™ํšŒ ์šฐ์ˆ˜ ๋…ผ๋ฌธ์ƒ (2023.11)
  • ์ •๋ณด๋ณดํ˜ธ ์ •์ฑ…์ œ์•ˆ ๊ณต๋ชจ์ „ (๋ณธ์„ ์ง„์ถœ) (2023.10)
  • ์ œ 1 ํšŒ ์™€๊ธ€์™€๊ธ€ ํ•ด์ปคํ†ค (3rd place) (2023.09)

๐ŸŽ“ Education

  • Best of the Best 14๊ธฐ ์ทจ์•ฝ์ ๋ถ„์„
  • ๊ฐ€์ฒœ๋Œ€ํ•™๊ต ์ปดํ“จํ„ฐ๊ณตํ•™๋ถ€ ์Šค๋งˆํŠธ๋ณด์•ˆ์ „๊ณต (2023๋…„ 3์›” ~ )
  • ํ•œ์†”๊ณ ๋“ฑํ•™๊ต ์กธ์—…

๐Ÿ’ผ Experience

  • SSA LAB โ€“ ํ•™๋ถ€ ์—ฐ๊ตฌ์ƒ (2025๋…„ 1์›” ~ ํ˜„์žฌ)
  • engineer - private
  • Speech Tools โ€“ S/W engineer (2024๋…„ 3์›” ~ 2024๋…„ 9์›”)
  • ZeroPointer โ€“ CEO (2023๋…„ 6์›” ~ 2024๋…„ 9์›”)

๐Ÿง‘โ€๐Ÿคโ€๐Ÿง‘ Clubs

  • Pay1oad โ€“ ๋ถ€ํšŒ์žฅ (2025๋…„)
  • Pay1oad โ€“ ๋ถ€ํšŒ์žฅ (2024๋…„)
  • ZeroPointerLab โ€“ ํšŒ์žฅ (2024๋…„)
  • Pay1oad โ€“ ๊ต์œก ํŒ€์žฅ (2023๋…„ 6์›”)

๐ŸŒ Contact Me


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