CVE-2023-21771: Microsoft Windows 10

High severity, CVSS 7.0. EPSS: 0.4% chance of exploitation in the next 30 days.

Windows Local Session Manager (LSM) Elevation of Privilege Vulnerability

Affected products

• Microsoft Windows 10: version 20h2 only; version 21h2 only; version 22h2 only
• Microsoft Windows 11: version 21h2 only; version 22h2 only
• Microsoft Windows Server 2022: affected versions not specified

Published 2023-01-10. Last modified 2026-06-17.