SYSTEM privilege escalation via TOCTOU race
Published Aug 13, 2024 · Updated Jul 10, 2025
Elevation of privilege in Windows Kernel-Mode Driver allows local users to gain SYSTEM privileges by winning a race condition. Microsoft identifies a time-of-check to time-of-use flaw but has not disclosed the affected driver, resource, or mismatched operations. Low-privileged local access is required; successful exploitation grants SYSTEM-level control over data and system operation.
Summary
What happened
Elevation of privilege in Windows Kernel-Mode Driver allows local users to gain SYSTEM privileges by winning a race condition. Microsoft identifies a time-of-check to time-of-use flaw but has not disclosed the affected driver, resource, or mismatched operations. Low-privileged local access is required; successful exploitation grants SYSTEM-level control over data and system operation.
The record
- CVE
- CVE-2024-38186
- Published
- Aug 13, 2024
- Updated
- Jul 10, 2025
- Vendor
- Microsoft
- Product
- Windows Server 2019
- Classifications
- CWE-367, T1068
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Aug 13, 2024CVE publishedPublication date reported by the CVE source.
- Jul 10, 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=10.0.17763.0 <10.0.17763.6054
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.
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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