What’s Vulnerable › Vulnerabilities

CVE-2026-20830: Capability Access Management Service (camsvc) Elevation of Privilege Vulnerability

• Severity: high (CVSS 7.0 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-01-13 · updated 2026-07-30
• Weakness: CWE-362

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

• Microsoft Windows Server 2025: before 10.0.26100.7623 — fixed in 10.0.26100.7623
• Microsoft Windows Server 2025: from 10.0.26100.0 before 10.0.26100.32230 — fixed in 10.0.26100.32230

How to fix

Upgrade to a fixed version: Microsoft Windows Server 2025 10.0.26100.7623; Microsoft Windows Server 2025 10.0.26100.32230. Check the vendor advisory for mitigations.

References

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

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