Microsoft Windows BitLocker Security Feature Bypass Vulnerability

Vulnerability

A time-of-check time-of-use (TOCTOU) race condition vulnerability has been identified in Windows BitLocker. This vulnerability allows an unauthorized attacker to bypass the BitLocker Device Encryption feature on the system storage device through a physical attack, potentially gaining access to encrypted data.

Impact

Exploitation of this vulnerability could lead to unauthorized access to encrypted data by bypassing BitLocker's device encryption on the system storage device.

Remediation

Users can apply the security updates provided by Microsoft to address this vulnerability. These security updates can be downloaded via the Microsoft Update Catalog. Specific update details can be found in the Microsoft Knowledge Base articles KB5062552, KB5062553, KB5062554, KB5062561, and KB5062570.

Added: Jul 8, 2025, 9:20 PM
Updated: Jul 8, 2025, 9:20 PM

Vulnerability Rating

Custom Algorithm
spread
8.4
impact
2.5
exploitability
2.9
remediation
7.7
relevance
0.2
threat
0.0
urgency
2.9
incentive
0.8

Our algorithm analyzes dozens of metrics to generate these 8 key vulnerability categories, which are then combined to calculate the overall risk score.