Windows Ancillary Function Driver

Critical CVEs

CVE-2026-68820: Actively Exploited Windows Ancillary Function Driver Zero-Day

CVE-2026-68820 is an actively exploited zero-day in the Windows Ancillary Function Driver for WinSock that grants SYSTEM privileges. It was patched by…

actively exploited CISA KEV CVE-2026-68820 Windows Ancillary Function Driver

August 11, 2026