CVE-2026-20830

low-risk

Published 2026-01-13

Concurrent execution using shared resource with improper synchronization ('race condition') in Capability Access Management Service (camsvc) allows an authorized attacker to elevate privileges locally.

Do I need to act?

0.03% chance of exploitation

EPSS score — low exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 7.0/10 High

LOCAL / HIGH complexity

Affected Products (1)

Windows Server 2025

Affected Vendors

Microsoft

References (1)

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

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low-risk

Severity 18/34 · Moderate

Exploitability 0/34 · Minimal

Exposure 5/34 · Minimal