Arbitrary file deletion via TOCTOU race
Published Oct 8, 2025 · Updated Oct 8, 2025
A TOCTOU race in CrowdStrike Falcon Sensor for Windows allows local users with code execution to delete arbitrary files. CrowdStrike has not disclosed the affected file-handling locus, the checked path, or the operation raced before deletion. Exploitation requires prior low-privileged code execution on the host and winning a high-complexity race; the bounded consequence is arbitrary file deletion and resulting service interruption.
Summary
What happened
A TOCTOU race in CrowdStrike Falcon Sensor for Windows allows local users with code execution to delete arbitrary files. CrowdStrike has not disclosed the affected file-handling locus, the checked path, or the operation raced before deletion. Exploitation requires prior low-privileged code execution on the host and winning a high-complexity race; the bounded consequence is arbitrary file deletion and resulting service interruption.
The record
- CVE
- CVE-2025-42701
- Published
- Oct 8, 2025
- Updated
- Oct 8, 2025
- Vendor
- CrowdStrike
- Product
- Falcon Sensor for Windows
- Classifications
- CWE-367, T1485
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Oct 8, 2025CVE publishedPublication date reported by the CVE source.
- Oct 8, 2025Record 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=7.16 <7.16.18637
- Affected versionversion=7.24 <7.24.19608
- Affected versionversion=7.25 <7.25.19707
- Affected versionversion=7.26 <7.26.19813
- Affected versionversion=7.27 <7.27.19909
- Affected versionversion=7.28 <7.28.20008
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
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Technologies
Your stack
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Your stack
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