CVE-2023-21547: Microsoft Windows 10 1607

High severity, CVSS 7.5. EPSS: 89.3% chance of exploitation in the next 30 days.

Internet Key Exchange (IKE) Protocol Denial of Service Vulnerability

Affected products

• Microsoft Windows 10 1607: affected versions not specified
• Microsoft Windows 10 1809: affected versions not specified
• Microsoft Windows 10 21h2: affected versions not specified
• Microsoft Windows 10 22h2: affected versions not specified
• Microsoft Windows 11 21h2: affected versions not specified
• Microsoft Windows 11 22h2: affected versions not specified
• Microsoft Windows Server 2016: affected versions not specified
• Microsoft Windows Server 2019: affected versions not specified
• Microsoft Windows Server 2022: affected versions not specified

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