DongHa Lee @gap_dev
Vulnerability Researcher in KR 👋 / / [email protected] github.com/GAP-dev Seoul, Republic of Korea Joined July 2025-
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NVIDIA da acceso gratis por API a modelos de IA. A DeepSeek V4, MiniMax M2.7, GLM 5.1, Gemma 4... Perfecto para pruebas de desarrollo. Puedes usarlo con OpenCode y OpenClaw Puedes conseguir acceso aquí: → build.nvidia.com/models
[1/2] CVE-2026-32223: heap overflow in usbprint.sys (IOCTL 0x220064). Malformed USB descriptor, Named Pipe spray + Ghost Chunk for kernel leak, forged IRP, SYSTEM. Writeup: enki.co.kr/en/media-cente… #CVE_2026_32223 #WindowsKernel #LPE #vulnresearch
This is exactly what I needed claude.com/form/cyber-use… chatgpt.com/cyber
IPv6 isn’t the end but this IPv8 draft feels like it was LLM-generated and tries to cram everything in, and bringing in JWT makes no sense ietf.org/archive/id/dra…
What if I told you the first GPU neural network implementation happened in Korea in 2004? 😗 Before CUDA, Before modern deep learning hype. The world’s FIRST GPU-accelerated neural network wasn’t built in Silicon Valley or by NVIDIA, It came from South Korea’s Soongsil University in 2004, years before CUDA even existed. two Korean researchers, Kyoung-Su Oh and Keechul Jung at Soongsil University quietly implemented neural networks on a consumer ATI Radeon GPU and achieved massive speedups. Used an ATI Radeon 9700 Pro to get 20-30x speedups on matrix multiplications and sigmoid functions for real-time text detection. translate then read - koreascience.or.kr/article/JAKO20…
Wrapped up BOB14 grabbed some bounty on the way. Not bad at all.
Some demo about running Virtual iPhone using Apple Virtualization framework: youtu.be/3vvrU0YGKCQ
@MrKaLi176442 Varies case by case. Probably tied to the quarter cycle, so from my experience it can take up to ~6 months. I don’t know exactly though.😭
Received $1,000 from Apple’s bug bounty program! Old report, but a nice surprise🎁
@MrKaLi176442 I reported this bug in June, received a CVE in October, and the bounty has now been addressed.
Getting ready to try something academic🎓 tkips.kips.or.kr/digital-librar…
🤌🔥 "Build a Fake Phone, Find Real Bugs Qualcomm GPU Emulation and Fuzzing with LibAFL QEMU" media.ccc.de/v/39c3-build-a…
On Apple Silicon, the GPU by default cannot use more than about 75% of the system's total memory, but you can change this setting easily. I use my own script for that and set it up to 98% on M3 Ultra 512GB. gist.github.com/ivanfioravanti…
I’m not affiliated with Talos. I’m an independent security researcher, so I don’t really know the details of the other bug. For my bug, I found it quite a while ago, and it looks like the credit process got missed after I reported it (it’s being sorted out now lol). As for exploitation: at least when I analyzed it back then, I didn’t see a viable way to get a shell. Even though it’s a stack overflow, I couldn’t find a memory layout that I could realistically overwrite in a useful way.
CVE-2025-23339 My first NVIDIA CVE🎉 (found via grammar-based fuzzing)
@f00fc7c800 Yep, it’s a stack overflow, but no shell😅 Not entirely sure where the line is drawn for calling this code execution
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ym @ymynss
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ch @chybeta
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