Jul 2025: Windows BitLocker Security Feature Bypass Vulnerability
CVE-2025-48818 Published on July 8, 2025
Windows BitLocker Security Feature Bypass Vulnerability
Time-of-check time-of-use (toctou) race condition in Windows BitLocker allows an unauthorized attacker to bypass a security feature with a physical attack.
Weakness Type
What is a TOCTTOU Vulnerability?
The software checks the state of a resource before using that resource, but the resource's state can change between the check and the use in a way that invalidates the results of the check. This can cause the software to perform invalid actions when the resource is in an unexpected state. This weakness can be security-relevant when an attacker can influence the state of the resource between check and use. This can happen with shared resources such as files, memory, or even variables in multithreaded programs.
CVE-2025-48818 has been classified to as a TOCTTOU vulnerability or weakness.
Products Associated with CVE-2025-48818
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Affected Versions
Microsoft Windows 10 Version 1507:- Version 10.0.10240.0 and below 10.0.10240.21073 is affected.
- Version 10.0.14393.0 and below 10.0.14393.8246 is affected.
- Version 10.0.17763.0 and below 10.0.17763.7558 is affected.
- Version 10.0.19044.0 and below 10.0.19044.6093 is affected.
- Version 10.0.19045.0 and below 10.0.19045.6093 is affected.
- Version 10.0.22621.0 and below 10.0.22621.5624 is affected.
- Version 10.0.22631.0 and below 10.0.22631.5624 is affected.
- Version 10.0.22631.0 and below 10.0.22631.5624 is affected.
- Version 10.0.26100.0 and below 10.0.26100.4652 is affected.
- Version 10.0.14393.0 and below 10.0.14393.8246 is affected.
- Version 10.0.14393.0 and below 10.0.14393.8246 is affected.
- Version 10.0.17763.0 and below 10.0.17763.7558 is affected.
- Version 10.0.17763.0 and below 10.0.17763.7558 is affected.
- Version 10.0.20348.0 and below 10.0.20348.3932 is affected.
- Version 10.0.25398.0 and below 10.0.25398.1732 is affected.
- Version 10.0.26100.0 and below 10.0.26100.4652 is affected.
- Version 10.0.26100.0 and below 10.0.26100.4652 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.