Protection Mechanism Failure in Microsoft BitLocker

1) Protection Mechanism Failure

EUVDB-ID: #VU107303

Risk: Low

CVSSv4.0: 4 [CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2025-26637

CWE-ID: CWE-693 - Protection Mechanism Failure

Exploit availability: No

Description

The vulnerability allows a local attacker to bypass implemented security restrictions.

The vulnerability exists due to insufficient implementation of security measures in BitLocker. An attacker with physical access can bypass the BitLocker Device Encryption feature on the system storage device.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Windows: 10 21H2 10.0.19041.3920 - 11 24H2 10.0.26100.3476

Windows Server: 2012 R2 6.3.9600.21871 - 2025 10.0.26100.3476

CPE2.3

• cpe:2.3:o:microsoft:windows:10_21H2:10.0.19044.5608:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows:10_22H2:10.0.19045.5608:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows:10_1607:10.0.14393.7876:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows:10_1809:10.0.17763.7009:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows:11_22H2:10.0.22621.5039:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows:11_23H2:10.0.22631.5039:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows:11_24H2:10.0.26100.3476:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_server:2012_R2:6.3.9600.22470:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_server:2016:10.0.14393.7876:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_server:2019:10.0.17763.7009:*:*:*:*:*:*

External links

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-26637

Q & A

Can this vulnerability be exploited remotely?

No. The attacker should have physical access to the system in order to successfully exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.