CVE-2026-20830

HighCVSS 7.0/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 7.0/10CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-362 CWE-416

Affected software

Vendor	Product	Versions
Microsoft	Windows Server 2025	>= 10.0.26100.0, < 10.0.26100.32230
Microsoft	Windows Server 2025 (Server Core installation)	>= 10.0.26100.0, < 10.0.26100.32230

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20830Vendor Advisory

Timeline

Published: Jan 13, 2026
Last modified: Jun 17, 2026
NVD status: Analyzed

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