CVE-2025-48003: 
vulnerability analysis and mitigation

A protection mechanism failure vulnerability was identified in Windows BitLocker, tracked as CVE-2025-48003. The vulnerability was disclosed on July 8, 2025, and affects various versions of Microsoft Windows, including Windows 11 and Windows Server 2025. This security issue allows an unauthorized attacker to bypass BitLocker's security features through a physical attack (NVD, CVE).

The vulnerability has been assigned a CVSS v3.1 base score of 6.8 (Medium), with the following vector string: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. This indicates that the vulnerability requires physical access (AV:P), has low attack complexity (AC:L), requires no privileges (PR:N), needs no user interaction (UI:N), has unchanged scope (S:U), and can result in high impacts to confidentiality, integrity, and availability (C:H/I:H/A:H). The vulnerability is classified under CWE-693 (Protection Mechanism Failure) (NVD).

The vulnerability allows an unauthorized attacker with physical access to bypass BitLocker's security features, potentially compromising the confidentiality, integrity, and availability of protected data. This could lead to unauthorized access to encrypted data stored on affected Windows systems (NVD).

Microsoft has identified affected versions including Windows Server 2025 (versions up to 10.0.26100.4652), Windows 11 22H2 (versions up to 10.0.22621.5624), Windows 11 23H2 (versions up to 10.0.22631.5624), and Windows 11 24H2 (versions up to 10.0.26100.4652). Users are advised to apply the security updates when available (NVD).