High · 7.0 CVE-2026-20815 EUVD-2026-2201GHSA-6vwf-rhq3-fmg6

Capability Access Management Service (camsvc) Elevation of Privilege Vulnerability

Published Jan 13, 2026 · Updated Jul 30, 2026 · Assigned by microsoft

Vendor: Microsoft Product: Windows 11 Version 24H2 Product: Windows 11 Version 25H2 Product: Windows Server 2025 Product: Windows Server 2025 (Server Core installation) Platform: Windows

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.

Affected products

Vendor	Product	Affected	Fixed
Microsoft	Windows 11 Version 24H2	10.0.26100.0 – < 10.0.26100.7623	10.0.26100.7623
Microsoft	Windows 11 Version 25H2	10.0.26200.0 – < 10.0.26200.7623	10.0.26200.7623
Microsoft	Windows Server 2025	10.0.26100.0 – < 10.0.26100.32230	10.0.26100.32230
Microsoft	Windows Server 2025 (Server Core installation)	10.0.26100.0 – < 10.0.26100.32230	10.0.26100.32230

Advisories 3

NCSC-2026-0007 Kwetsbaarheden verholpen in Microsoft Windows NCSC-NL (Netherlands) · Apr 10, 2026
WID-SEC-2026-0083 Microsoft Windows : Mehrere Schwachstellen BSI CERT-Bund (WID) · Mar 2, 2026
MSRC-CVE-2026-20815 Capability Access Management Service (camsvc) Elevation of Privilege Vulnerability Microsoft Security Response Center · Jan 13, 2026

References

Capability Access Management Service (camsvc) Elevation of Privilege Vulnerability vendor-advisory patch