Windows CVE-2026-20848
HIGHCVSS VectorNVD
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Lifecycle Timeline
2DescriptionNVD
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows SMB Server allows an authorized attacker to elevate privileges over a network.
AnalysisAI
Privilege escalation via race condition in Windows SMB Server affects Windows 10 21h2, Windows 11 25h2, and Windows Server 2022 23h2, allowing authenticated attackers to gain elevated privileges over the network. The vulnerability stems from improper synchronization when handling concurrent access to shared resources, and no patch is 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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