Show HN: CVE-2026-40369 Windows Kernel Arbitrary Write Chrome SBX
CVE-2026-40369 is a critical Windows kernel arbitrary write vulnerability that can be exploited to escape Chrome's sandbox (SBX). This post details the discovery, technical analysis, and proof-of-concept exploit for the flaw, which affects recent Windows builds. The author demonstrates how the kernel bug can be chained to achieve full sandbox escape from the Chrome browser.