Old Bug, Harder Rules : Exploiting CVE-2023-36802 Without the Usual Shortcuts

Final part of the N-day chain series: how CVE-2023-36802, a type-confusion flaw in the mskssrv.sys driver, was analysed and exploited to raise VMware privileges to SYSTEM on the host.

A retrospective on CVE-2025-39964, an AF_ALG race condition causing out-of-bounds scatterlist access in the Linux kernel. Exploitation yields root and a Docker container escape.

The author used AI to find a UAF bug in Linux net/sched and built an LPE exploit for CentOS 9 at TyphoonPwn 2026. AI sped things up, but deep subsystem knowledge still mattered.

The authors reverse-engineered Chrome's January 2026 fix for CVE-2026-0899, an out-of-bounds access in V8, built a trigger PoC, and defeated a stubborn CHECK to reach arbitrary read/write.

Post-auth RCE in Cisco Smart Software Manager (CSSM): command injection in nginx certificate upload, where openssl checks run via childProcess.execSync. Cisco silently patched it in 10-202608.

Ubuntu Server silently puts the first user in the lxd group, root-equivalent by design. The seeded lxd-installer socket lets lxd users install LXD password-free and reach host root; vendor won't fix.