> CVE-2026-20831 Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability

[SOURCE] Microsoft Security Update Guide [DATE: 13/01/2026 08:00] [LANGUAGE: EN]

Time-of-check time-of-use (toctou) race condition in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.

[messages.read_original_source] →