Security Advisory

CVE-2026-20831

CVE vulnerability detail — eXtreme Datacenter Security Operations

Published 2026-01-13 17:56:21

Last updated 2026-04-01 13:48:30

Assigner microsoft

State PUBLISHED

Description

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

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