Vulnerability Research & Exploit Development

VsockDrop: unprivileged Linux kernel LPE in the io_uring/vsock zerocopy path, no user namespaces needed. Bug affects Linux 6.7 -> 7.0.10, fixed in 7.0.11. PoC video: Ubuntu 26.04 LTS on bare metal. Exploit + mini write-up here: github.com/MaherAzzouzi/vsoc…
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pre-auth remote heap overflow in libwebsockets
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Me: here is a stable OOB read/write vulnerability. : duplicate of CVE-2026-XXXX. Me: I reported CVE-2026-XXXX too. These are different bugs: different root causes and different vulnerability classes (UAF vs OOB r/w). I don’t think this is a duplicate. : this ticket was closed because it was not reproducible on the latest branch used in our products. Me: I can reliably reproduce it on the latest public iOS 26.5 beta. I also provided a video PoC. : thank you for the additional info. A few weeks later: we reproduced the issue and are planning to address it in Summer 2026... ¯\_(ツ)_/¯
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Qualcomm mishandled my last report at first, but in the end they acknowledged the issue and paid the bounty. I reported a FastRPC UAF. Qualcomm said that they know about it but due to some internal tooling problems, the fix didn't reach all release branches for over a year.
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Another AMDGPU bug I reported last year has been fixed: CVE-2025-54517 (CVSS 8.5). One ioctl -> kernel compromise on AMD Instinct / Radeon PRO virtualization stacks. May 2026 security bulletin: amd.com/en/resources/product…

ALT Amd Intel GIF

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Apple fixed two vulnerabilities I reported affecting Safari/WebKit: CVE-2026-28953 and CVE-2026-28901. Sometimes mitigations can create new attack surfaces. support.apple.com/en-us/1271…
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Redis 👀
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Technical details for a kernel UAF vulnerability I reported earlier (analysis + PoC). kernel.googlesource.com/pub/…
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Reported ZDI-CAN-28490 (CVSS 7.5). A Linux kernel bug in the ETS qdisc within the packet scheduler subsystem. A logic flaw + race can leave a freed qdisc on an internal list, letting an unprivileged user trigger a UAF and gain kernel-level privilege escalation.
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No more POC tickets? @POC_Crew. Wanted to visit this year’s edition, it seems im a bit late
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AMD August 2025 Security Bulletins (AMD-SB-6018 and AMD-SB-5007) feature my discovery CVE-2024-36342, a heap overflow in the @AMD GPU driver, rated with the highest severity in AMD-SB-5007 and listed among the most severe vulnerabilities in AMD-SB-6018. amd.com/en/resources/product…
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ZDI-CAN-27262 is a Linux kernel 0-day I reported recently that allows unprivileged users to escalate privileges to root. The vulnerability is a race condition leading to a UAF in the kmalloc-196 cache. It was introduced in v4.2-rc1 and has been present in the kernel for 10 years.
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Maher Azzouzi retweeted
I wrote an LPE for CVE-2014-3153 AKA Towelroot, a bug in the Linux Kernel that was used to root Android devices earlier. The original exploit is closed source and protected against reverse engineering. PoC + mini write-up here: git.io/Jnazk
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Maher Azzouzi retweeted
I wrote an LPE exploit for CVE-2017-11176 for Linux Kernel version 4.8.11, I managed to bypass SMEP and SMAP (by stack pivoting inside the kernel and ROP). The vulnerability is a UAF, and the patch is only 1 line of code. Exploit and Write-up + Refs here: git.io/J0p8v
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in 2025: “How the bug was found? fuzzing, auditing or LLM?”
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- Heap overflow in the latest AMDGPU drivers. CVSS score: 8.8, bounty: $5k. - 7 Android kernel vulnerabilities. It wasn’t a good idea to keep these bugs documented without reporting them for three months — one of them turned out to be a duplicate.
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6998d993a027f9e430b9b3552a0d4374
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Android Binder use-after-free vulnerability reported to Google by me
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Found a lot of Linux kernel vulnerabilities, too little time for developing exploits, maybe im gonna pick the most interesting one and work on it. (probably report them as they are is an option 🤔?)
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