CVE-2026-20830: CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') in Microsoft Windows Server 2025
Concurrent execution using shared resource with improper synchronization ('race condition') in Capability Access Management Service (camsvc) allows an authorized attacker to elevate privileges locally.
AI Analysis
Technical Summary
This vulnerability involves a race condition (CWE-362) in the Capability Access Management Service of Windows Server 2025. Improper synchronization during concurrent execution of shared resources can be exploited by an authorized local user to elevate their privileges. The CVSS 3.1 vector indicates local attack vector, high attack complexity, low privileges required, no user interaction, unchanged scope, and high impact on confidentiality, integrity, and availability. Microsoft has published this vulnerability and a patch is available.
Potential Impact
An authorized local attacker can exploit this race condition to elevate privileges on the affected Windows Server 2025 system. This could lead to full system compromise including unauthorized access to sensitive data and disruption of system availability. There are no known exploits in the wild at this time.
Mitigation Recommendations
A patch is available for this vulnerability and should be applied promptly to affected systems running Windows Server 2025 version 10.0.26100.0. No additional mitigation steps are indicated beyond applying the official fix.
CVE-2026-20830: CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') in Microsoft Windows Server 2025
Description
Concurrent execution using shared resource with improper synchronization ('race condition') in Capability Access Management Service (camsvc) allows an authorized attacker to elevate privileges locally.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves a race condition (CWE-362) in the Capability Access Management Service of Windows Server 2025. Improper synchronization during concurrent execution of shared resources can be exploited by an authorized local user to elevate their privileges. The CVSS 3.1 vector indicates local attack vector, high attack complexity, low privileges required, no user interaction, unchanged scope, and high impact on confidentiality, integrity, and availability. Microsoft has published this vulnerability and a patch is available.
Potential Impact
An authorized local attacker can exploit this race condition to elevate privileges on the affected Windows Server 2025 system. This could lead to full system compromise including unauthorized access to sensitive data and disruption of system availability. There are no known exploits in the wild at this time.
Mitigation Recommendations
A patch is available for this vulnerability and should be applied promptly to affected systems running Windows Server 2025 version 10.0.26100.0. No additional mitigation steps are indicated beyond applying the official fix.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2025-12-03T05:54:20.375Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 69668adda60475309f9adfe7
Added to database: 1/13/2026, 6:11:41 PM
Last enriched: 4/3/2026, 12:43:27 PM
Last updated: 5/10/2026, 9:05:27 AM
Views: 72
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