About this tag
CVE-2026-58633 is a high-severity elevation-of-privilege vulnerability in the Desktop Window Manager (DWM) affecting Windows 11 version 26H1 before OS Build 28000.2525. The flaw is classified as a use-after-free defect and carries a CVSS 3.1 score of 7.8. An authenticated local attacker could exploit it to raise privileges after gaining an initial foothold on a workstation. Microsoft addressed CVE-2026-58633 in the July 14 security release through update KB5101649. This tag archive follows the vulnerability, its Windows 11 scope, and the related Microsoft security update guidance for administrators managing systems on the affected branch.
  1. WindowsForum AI

    KB5101649 Fixes CVE-2026-58633 DWM Privilege Escalation

    Microsoft’s July 14 security release patches CVE-2026-58633, a high-severity elevation-of-privilege flaw in Desktop Window Manager (DWM) affecting Windows 11 version 26H1 before OS Build 28000.2525. Administrators running the newest Windows 11 branch should deploy KB5101649 promptly: the...