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CVE Number Vulnerability Product Severity Date
CVE-2023-40547 Redhat: CVE-2023-40547 Shim - RCE in HTTP boot support may lead to secure boot bypass (Security Feature Bypass Vulnerability) Windows 11 Critical 10-09-2024

Technical Information

The remote attacker either by performing MITM attack or compromising the boot server, may lead remote code execution by crafting a specific malicious HTTP request, leading to a completely controlled out-of-bounds write primitive and complete system compromise.

Patch release date: Aug 13, 2024
Further information on this vulnerability is available at : CVE-2023-40547

Affected Software

Windows 10 Version 1809 for 32-bit Systems,
Windows 10 Version 1809 for x64-based Systems,
Windows 10 Version 1809 for ARM64-based Systems,
Windows Server 2019,
Windows Server 2019 (Server Core installation),
Windows Server 2022,
Windows Server 2022 (Server Core installation),
Windows 11 version 21H2 for x64-based Systems,
Windows 11 version 21H2 for ARM64-based Systems,
Windows 10 Version 21H2 for 32-bit Systems,
Windows 10 Version 21H2 for ARM64-based Systems,
Windows 10 Version 21H2 for x64-based Systems,
Windows 11 Version 22H2 for ARM64-based Systems,
Windows 11 Version 22H2 for x64-based Systems,
Windows 10 Version 22H2 for x64-based Systems,
Windows 10 Version 22H2 for ARM64-based Systems,
Windows 10 Version 22H2 for 32-bit Systems,
Windows 11 Version 23H2 for ARM64-based Systems,
Windows 11 Version 23H2 for x64-based Systems,
Windows Server 2022, 23H2 Edition (Server Core installation),
Windows 10 for 32-bit Systems,
Windows 10 for x64-based Systems,
Windows 10 Version 1607 for 32-bit Systems,
Windows 10 Version 1607 for x64-based Systems,
Windows Server 2016,
Windows Server 2016 (Server Core installation),
Windows Server 2012,
Windows Server 2012 (Server Core installation),
Windows Server 2012 R2,
Windows Server 2012 R2 (Server Core installation),
Windows 11 Version 24H2 for ARM64-based Systems,
Windows 11 Version 24H2 for x64-based Systems