CVE-2025-55682: 
vulnerability analysis and mitigation

CVE-2025-55682 is a security vulnerability affecting Windows BitLocker that was disclosed on October 14, 2025. The vulnerability involves improper enforcement of behavioral workflow in Windows BitLocker which allows an unauthorized attacker to bypass security features through physical access. The affected systems include Windows 11 version 24H2, Windows 11 version 25H2, and Windows Server 2025 (NVD).

The vulnerability has been assigned a CVSS v3.1 base score of 4.6 (Medium) with the vector string CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N, indicating that physical access is required for exploitation, but no privileges or user interaction are needed. Microsoft's assessment differs slightly with a CVSS score of 6.1 (Medium) and vector string CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N (NVD).

The vulnerability allows an unauthorized attacker with physical access to bypass BitLocker security features. This could potentially lead to unauthorized access to encrypted data on affected systems (NVD).

Microsoft has released security updates to address this vulnerability. Affected systems should be updated to versions 10.0.26100.6899 or later for Windows 11 24H2, 10.0.26200.6899 or later for Windows 11 25H2, and 10.0.26100.6899 or later for Windows Server 2025 (NVD).