CVE-2026-24293

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

Null Pointer Dereference Microsoft Denial Of Service Windows Server 2022 Windows 11 24h2 Windows Server 2025 Windows 11 23h2 Windows Server 2022 23h2 Windows 10 22h2 Windows 11 26h1 Windows 10 21h2 Windows 11 25h2 Windows

Description

Null pointer dereference in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.

Analysis

Privilege escalation in Windows Ancillary Function Driver for WinSock affects Windows 11 24H2, Windows Server 2022, and Windows Server 2025, allowing authenticated local attackers to gain system-level access through null pointer dereference. The vulnerability requires valid user credentials and local access but no user interaction to exploit. …

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Remediation

Within 24 hours: Inventory all Windows systems running the affected WinSock driver and restrict local administrative account access to trusted personnel only. Within 7 days: Implement Enhanced Mitigation Experience Toolkit (EMET) or equivalent exploit mitigation controls on critical systems; conduct threat hunting for signs of exploitation. …

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Priority Score

39
Low Medium High Critical
KEV: 0
EPSS: +0.0
CVSS: +39
POC: 0

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CVE-2026-24293 vulnerability details – vuln.today
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