CVE-2024-20684: Microsoft Windows 11 21h2

Medium severity, CVSS 6.5. EPSS: 1% chance of exploitation in the next 30 days.

Windows Hyper-V Denial of Service Vulnerability

Affected products

• Microsoft Windows 11 21h2: before 10.0.22000.2777 (fixed in 10.0.22000.2777)
• Microsoft Windows 11 22h2: before 10.0.22621.3155 (fixed in 10.0.22621.3155)
• Microsoft Windows 11 23h2: before 10.0.22631.3155 (fixed in 10.0.22631.3155)
• Microsoft Windows Server 2022: before 10.0.20348.2322 (fixed in 10.0.20348.2322)
• Microsoft Windows Server 2022 23h2: before 10.0.25398.709 (fixed in 10.0.25398.709)

Published 2024-02-13. Last modified 2026-08-10.