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CVE-2024-37977: Secure Boot Security Feature Bypass Vulnerability

• Severity: high (CVSS 8.0 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-07-09 · updated 2026-06-17
• Weakness: CWE-122

Description

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: before 10.0.22621.3880 — fixed in 10.0.22621.3880
• Microsoft Windows 11: 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 Edition (Server Core installation): before 10.0.25398.1009 — fixed in 10.0.25398.1009
• Microsoft Windows 11 21H2: from 10.0.0 before 10.0.22000.3079 — fixed in 10.0.22000.3079
• Microsoft Windows 11: from 10.0.22621.0 before 10.0.22621.3880 — fixed in 10.0.22621.3880
• Microsoft Windows 11 version 22H3: from 10.0.22631.0 before 10.0.22631.3880 — fixed in 10.0.22631.3880
• Microsoft Windows 11: from 10.0.22631.0 before 10.0.22631.3880 — fixed in 10.0.22631.3880
• Microsoft Windows Server 2022: from 10.0.20348.0 before 10.0.20348.2582 — fixed in 10.0.20348.2582
• Microsoft Windows Server 2022, 23H2 Edition (Server Core installation): from 10.0.25398.0 before 10.0.25398.1009 — fixed in 10.0.25398.1009

How to fix

Upgrade to a fixed version: Microsoft Windows 11 21H2 10.0.22000.3079; Microsoft Windows 11 10.0.22621.3880; Microsoft Windows 11 10.0.22631.3880; Microsoft Windows Server 2022 10.0.20348.2582; Microsoft Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.1009; Microsoft Windows 11 21H2 10.0.22000.3079; Microsoft Windows 11 10.0.22621.3880; Microsoft Windows 11 version 22H3 10.0.22631.3880; Microsoft Windows 11 10.0.22631.3880; Microsoft Windows Server 2022 10.0.20348.2582; Microsoft Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.1009. Check the vendor advisory for mitigations.

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-37977
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-37977

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