CVE-2024-37977: Microsoft Windows 11 21h2

High severity, CVSS 8.0. EPSS: 1.1% chance of exploitation in the next 30 days.

Secure Boot Security Feature Bypass Vulnerability

Affected products

• Microsoft Windows 11 21h2: before 10.0.22000.3079 (fixed in 10.0.22000.3079)
• Microsoft Windows 11 22h2: before 10.0.22621.3880 (fixed in 10.0.22621.3880)
• Microsoft Windows 11 23h2: before 10.0.22631.3880 (fixed in 10.0.22631.3880)
• Microsoft Windows Server 2022: before 10.0.20348.2582 (fixed in 10.0.20348.2582)
• Microsoft Windows Server 2022 23h2: before 10.0.25398.1009 (fixed in 10.0.25398.1009)

Published 2024-07-09. Last modified 2026-06-17.