Local privilege escalation via camsvc race condition
Published Jul 8, 2025 · Updated Feb 26, 2026
Privilege escalation in Microsoft Windows allows local users to gain SYSTEM privileges through a race condition in camsvc. The Capability Access Management Service concurrently accesses a shared resource without proper synchronization, producing a double-free condition. Local code execution and precise race timing are required; successful exploitation grants SYSTEM-level control, while failed attempts can destabilize the service.
Summary
What happened
Privilege escalation in Microsoft Windows allows local users to gain SYSTEM privileges through a race condition in camsvc. The Capability Access Management Service concurrently accesses a shared resource without proper synchronization, producing a double-free condition. Local code execution and precise race timing are required; successful exploitation grants SYSTEM-level control, while failed attempts can destabilize the service.
The record
- CVE
- CVE-2025-49690
- Published
- Jul 8, 2025
- Updated
- Feb 26, 2026
- Vendor
- Microsoft
- Product
- Windows Server 2019
- Classifications
- CWE-415, CWE-362, T1068
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jul 8, 2025CVE publishedPublication date reported by the CVE source.
- Feb 26, 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=10.0.17763.0 <10.0.17763.7558
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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