CVE-2026-24294

HIGH
2026-03-10 [email protected]
7.8
CVSS 3.1
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CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

2
Analysis Generated
Mar 12, 2026 - 21:55 vuln.today
CVE Published
Mar 10, 2026 - 18:18 nvd
HIGH 7.8

Tags

Microsoft Authentication Bypass Windows

Description

Improper authentication in Windows SMB Server allows an authorized attacker to elevate privileges locally.

Analysis

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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Remediation

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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Priority Score

39
Low Medium High Critical
KEV: 0
EPSS: +0.1
CVSS: +39
POC: 0

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CVE-2026-24294 vulnerability details – vuln.today
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