CVE-2021-31951: Microsoft Windows 10

High severity, CVSS 7.8. EPSS: 0.7% chance of exploitation in the next 30 days.

Windows Kernel Elevation of Privilege Vulnerability

Affected products

• Microsoft Windows 10: version 20h2 only; version 21h1 only; version 1909 only; version 2004 only
• Microsoft Windows Server 2016: version 20h2 only; version 2004 only
• Microsoft Windows Server 2019: affected versions not specified

Published 2021-06-08. Last modified 2026-06-17.