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Windows Ancillary Function Driver for WinSock vulnerabilities
1 published alerts for Microsoft Windows Ancillary Function Driver for WinSock.
Actively exploited (KEV)
Microsoft Windows Ancillary Function Driver for WinSock Use-After-Free Vulnerability
Microsoft Windows Ancillary Function Driver for WinSock is listed in CISA's Known Exploited Vulnerabilities catalog (CVE-2026-68820). Microsoft Windows Ancillary Function Driver for WinSock contains a use-after-free vulnerability that allows an authorized attacker to elevate privileges locally. CISA remediation due date: 2026-08-25. If you need help checking exposure, call (864) 335-9223.