Local privilege escalation via shared-resource race condition
Published Oct 14, 2025 · Updated Oct 14, 2025
Race condition in Windows Hyper-V on affected Microsoft Windows releases allows local users with low privileges to elevate privileges. Concurrent access to an undisclosed shared resource lacks proper synchronization, allowing an attacker-controlled race to corrupt privileged state. Successful exploitation requires local low-privileged access and can grant higher privileges; Microsoft has not disclosed the shared resource or racing operations.
Summary
What happened
Race condition in Windows Hyper-V on affected Microsoft Windows releases allows local users with low privileges to elevate privileges. Concurrent access to an undisclosed shared resource lacks proper synchronization, allowing an attacker-controlled race to corrupt privileged state. Successful exploitation requires local low-privileged access and can grant higher privileges; Microsoft has not disclosed the shared resource or racing operations.
The record
- CVE
- CVE-2025-55328
- Published
- Oct 14, 2025
- Updated
- Oct 14, 2025
- Vendor
- Microsoft
- Product
- Windows 10 Version 1507
- Classifications
- CWE-362, T1068
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Oct 14, 2025CVE publishedPublication date reported by the CVE source.
- Oct 14, 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=10.0.10240.0 <10.0.10240.21161
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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