Windows CVE-2026-24294
HIGHCVSS VectorNVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Lifecycle Timeline
2DescriptionNVD
Improper authentication in Windows SMB Server allows an authorized attacker to elevate privileges locally.
AnalysisAI
Windows SMB Server authentication bypass across multiple versions (Windows 10 1607, Windows 11 23h2, Windows Server 2012/2025) permits authenticated local users to escalate privileges with high impact to confidentiality, integrity, and availability. The vulnerability stems from improper authentication validation in the SMB service, allowing a local attacker to gain system-level access without user interaction. …
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RemediationAI
Within 24 hours: Inventory all Windows systems running SMB Server and assess exposure scope; disable SMB v1 if not operationally critical and restrict SMB access via firewall rules. Within 7 days: Implement network segmentation to limit SMB traffic to authorized systems only; enable enhanced logging and monitoring for SMB authentication failures and privilege escalation attempts. …
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