Windows CVE-2026-20873
HIGHCVSS VectorNVD
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
Lifecycle Timeline
2DescriptionNVD
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Management Services allows an authorized attacker to elevate privileges locally.
AnalysisAI
Privilege escalation in Windows Management Services (Windows 10/11) stems from improper synchronization of shared resources, allowing authenticated local users to gain elevated privileges through race condition exploitation. The vulnerability affects multiple Windows versions including 22H2 and 24H2 builds, with no patch currently available. …
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RemediationAI
Within 7 days: Identify all affected systems and apply vendor patches promptly. Monitor vendor channels for patch availability.
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