Thurrott Critical Elevation of Privilege Vulnerabilities in Windows 11 and 10
Article Content
- •Critical elevation of privilege vulnerabilities identified in Windows 11 and 10.
- •CVE-2026-62721 and CVE-2026-85921 are the key vulnerabilities addressed.
- •Updates released today include fixes for Remote Desktop Services and USB audio issues.
Microsoft has released out-of-band security updates for Windows 11 (versions 24H2, 25H2, and 26H1) and Windows 10 (version 1809) to address critical elevation of privilege vulnerabilities. The updates include protections for CVE-2026-62721, a Windows User-Mode Power Service vulnerability published on August 11, 2026, and CVE-2026-85921, a Windows Secure Kernel Mode vulnerability published today. Affected systems may experience instability in Remote Desktop Services (RDS) and issues with USB Audio Class 1.0 devices. The updates also address known issues related to Hyper-V and audio functionalities. Administrators are urged to apply these updates promptly to mitigate potential exploitation risks. Microsoft is actively monitoring the situation and has provided guidance on known issues and fixes.
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