CVE-2021-27070: Microsoft Windows 10

High severity, CVSS 7.3. EPSS: 4.1% chance of exploitation in the next 30 days.

Windows 10 Update Assistant Elevation of Privilege Vulnerability

Affected products

• Microsoft Windows 10: version 20h2 only; version 2004 only
• Microsoft Windows Server 2016: version 20h2 only; version 2004 only

Published 2021-03-11. Last modified 2026-08-19.