CVE-2025-21215: 
vulnerability analysis and mitigation

A Secure Boot Security Feature Bypass Vulnerability has been identified and assigned CVE-2025-21215. The vulnerability was initially reported by Microsoft Corporation on December 5, 2024, and was published in the National Vulnerability Database (NVD) on January 14, 2025. This security issue affects multiple versions of Microsoft Windows operating systems, including Windows 10, Windows 11, and various Windows Server editions (NVD).

The vulnerability has been assigned a CVSS v3.1 Base Score of 4.6 (MEDIUM) with the following vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N. The weakness has been categorized as CWE-125 (Out-of-bounds Read) by Microsoft Corporation (NVD).

This vulnerability affects multiple Microsoft Windows versions including Windows 10 (versions 1507, 1607, 1809, 21H2, 22H2), Windows 11 (versions 22H2, 23H2, 24H2), and Windows Server editions (2008, 2012, 2016, 2019, 2022, 2025) (NVD).

Microsoft has released patches for the affected systems. The fix addresses versions up to specific build numbers for each affected Windows version, including Windows 10 (10.0.10240.20890), Windows 11 (10.0.22621.4751), and various Server editions (NVD).