cve 2026 68820

CVE 2026 68820 is the tag for coverage of an actively exploited elevation-of-privilege vulnerability in Microsoft Windows’s Ancillary Function Driver for WinSock. The reported issue is described as a use-after-free flaw and is the immediate Windows priority in Microsoft’s August 11, 2026 Patch Tuesday release. Discussions focus on patching Windows systems promptly, confirming affected versions and servicing updates, and tracking the vulnerability’s inclusion in CISA’s Known Exploited Vulnerabilities catalog. Related coverage also places the flaw alongside broader August security updates and administrator concerns for roles such as DNS, DHCP, Windows Deployment Services, SharePoint, AD CS, and Remote Desktop Client.