CVE-2026-20815: CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') in Microsoft Windows 11 Version 24H2
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 (camsvc) on Windows 11 Version 24H2 (build 10.0.26100.0). Improper synchronization when accessing shared resources allows a local attacker with some privileges to escalate their privileges further. The CVSS 3.1 vector indicates the attack requires local access with high attack complexity and low privileges but no user interaction. The impact includes high confidentiality, integrity, and availability consequences. Microsoft has published a patch to remediate this issue.
Potential Impact
An authorized local attacker can exploit this race condition to elevate privileges on the affected Windows 11 system. This could lead to unauthorized access to sensitive information, modification of system settings, or disruption of system availability. The vulnerability does not require user interaction but does require local access and some privileges.
Mitigation Recommendations
A patch is available from Microsoft to fix this vulnerability. It is recommended to apply the official update for Windows 11 Version 24H2 as soon as possible to remediate the issue. No additional mitigation steps are indicated beyond applying the patch.
CVE-2026-20815: CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') in Microsoft Windows 11 Version 24H2
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 (camsvc) on Windows 11 Version 24H2 (build 10.0.26100.0). Improper synchronization when accessing shared resources allows a local attacker with some privileges to escalate their privileges further. The CVSS 3.1 vector indicates the attack requires local access with high attack complexity and low privileges but no user interaction. The impact includes high confidentiality, integrity, and availability consequences. Microsoft has published a patch to remediate this issue.
Potential Impact
An authorized local attacker can exploit this race condition to elevate privileges on the affected Windows 11 system. This could lead to unauthorized access to sensitive information, modification of system settings, or disruption of system availability. The vulnerability does not require user interaction but does require local access and some privileges.
Mitigation Recommendations
A patch is available from Microsoft to fix this vulnerability. It is recommended to apply the official update for Windows 11 Version 24H2 as soon as possible to remediate the issue. No additional mitigation steps are indicated beyond applying the patch.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2025-12-03T05:54:20.373Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 69668adba60475309f9adf8b
Added to database: 1/13/2026, 6:11:39 PM
Last enriched: 4/3/2026, 12:41:33 PM
Last updated: 5/7/2026, 12:32:35 AM
Views: 98
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