Physical security bypass via TOCTOU race
Published Jul 8, 2025 · Updated Feb 13, 2026
A TOCTOU race in Microsoft Windows BitLocker allows physically proximate attackers to bypass drive-encryption security protections. Microsoft identifies a time-of-check/time-of-use race in BitLocker but has not disclosed the checked resource, competing operation, or race window. Physical access is required, and successful exploitation defeats BitLocker protections, exposing data protected by the affected device.
Summary
What happened
A TOCTOU race in Microsoft Windows BitLocker allows physically proximate attackers to bypass drive-encryption security protections. Microsoft identifies a time-of-check/time-of-use race in BitLocker but has not disclosed the checked resource, competing operation, or race window. Physical access is required, and successful exploitation defeats BitLocker protections, exposing data protected by the affected device.
The record
- CVE
- CVE-2025-48001
- Published
- Jul 8, 2025
- Updated
- Feb 13, 2026
- Vendor
- Microsoft
- Product
- Windows 10 Version 1507
- Classifications
- CWE-367
- Attack vector
- physical
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jul 8, 2025CVE publishedPublication date reported by the CVE source.
- Feb 13, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=10.0.10240.0 <10.0.10240.21073
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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