Windows Server 2025
CVE-2026-20830
HIGH
Severity by source
AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Primary rating from NVD.
CVSS VectorNVD
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Lifecycle Timeline
2DescriptionCVE.org
Concurrent execution using shared resource with improper synchronization ('race condition') in Capability Access Management Service (camsvc) allows an authorized attacker to elevate privileges locally.
AnalysisAI
Privilege escalation in Windows Server 2025 Capability Access Management Service stems from improper synchronization of shared resources, enabling authenticated local users to gain elevated privileges. The race condition requires specific timing conditions but no patch is currently available, leaving affected systems vulnerable to privilege escalation attacks by authorized local users.
Technical ContextAI
Classified as CWE-362 (Race Condition). Affects the Capability Access Management component of Windows Server 2025. Concurrent execution using shared resource with improper synchronization ('race condition') in Capability Access Management Service (camsvc) allows an authorized attacker to elevate privileges locally.
RemediationAI
Monitor vendor advisories for a patch.
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Same weakness CWE-362 – Race Condition
View allSame technique Race Condition
View allShare
External POC / Exploit Code
Leaving vuln.today