CVE-2021-26416: Microsoft Windows 10

High severity, CVSS 7.7. EPSS: 3.9% chance of exploitation in the next 30 days.

Windows Hyper-V Denial of Service Vulnerability

Affected products

• Microsoft Windows 10: version 20h2 only; version 1607 only; version 1809 only; version 1909 only; version 2004 only
• Microsoft Windows Server 2016: affected versions not specified; version 20h2 only; version 1909 only; version 2004 only
• Microsoft Windows Server 2019: affected versions not specified

Published 2021-04-13. Last modified 2026-06-17.