SB2025011472 - Multiple vulnerabilities in Microsoft Windows BitLocker

Description

This security bulletin contains information about 2 vulnerabilities.

1) Not Failing Securely ('Failing Open') (CVE-ID: CVE-2025-21210)

CWE-ID: CWE-636 - Not Failing Securely (\'Failing Open\')

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

The vulnerability allows a local attacker to gain access to potentially sensitive information.

The vulnerability exists due to excessive data output by the application in Windows BitLocker. An attacker with physical access can gain unauthorized access to sensitive information on the system.

2) Information disclosure (CVE-ID: CVE-2025-21214)

CWE-ID: CWE-200 - Exposure of sensitive information to an unauthorized actor

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

The vulnerability allows a local attacker to gain access to potentially sensitive information.

The vulnerability exists due to excessive data output by the application in Windows BitLocker. An attacker with physical access can gain unauthorized access to sensitive information on the system.

Remediation

Install update from vendor's website.

References

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2025-21210
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2025-21214