CVE-2022-21849: Microsoft Windows 10

Critical severity, CVSS 9.8. EPSS: 6.2% chance of exploitation in the next 30 days.

Windows Internet Key Exchange (IKE) Protocol Extensions Remote Code Execution Vulnerability

Affected products

• Microsoft Windows 10: affected versions not specified; version 20h2 only; version 21h1 only; version 21h2 only; version 1607 only; version 1809 only; …
• Microsoft Windows 11: affected versions not specified
• Microsoft Windows Server: version 20h2 only; version 2022 only
• Microsoft Windows Server 2016: affected versions not specified
• Microsoft Windows Server 2019: affected versions not specified

Published 2022-01-11. Last modified 2026-06-17.