Vulnerabilities
Vulnerable Software

Vulnerability Details CVE-2026-20831

Time-of-check time-of-use (toctou) race condition in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 12.4%
CVSS Severity
CVSS v3 Score 7.8
Products affected by CVE-2026-20831


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