CVE-2026-25179

HIGH
2026-03-10 [email protected]
7.0
CVSS 3.1
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CVSS Vector

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Local
Attack Complexity
High
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 7.0

Tags

Information Disclosure Microsoft Windows Server 2025 Windows Server 2022 Windows Server 2022 23h2 Windows 10 1809 Windows Server 2012 Windows 10 21h2 Windows 11 26h1 Windows 11 24h2 Windows 10 1607 Windows 11 23h2 Windows Server 2016 Windows 11 25h2 Windows 10 22h2 Windows Server 2019 Windows

Description

Improper validation of specified type of input in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.

Analysis

Windows Ancillary Function Driver for WinSock in Windows Server 2025, 2022, and Windows 10 1809 contains insufficient input validation that allows authenticated local users to escalate privileges. An attacker with local access and valid credentials can exploit this vulnerability to gain elevated system permissions, though no patch is currently available. …

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Remediation

Within 24 hours: Inventory all Windows systems running affected WinSock versions and assess which have privileged user accounts requiring local access. Within 7 days: Implement network segmentation to restrict local access where possible, enforce least-privilege account policies, and disable unnecessary local user accounts. …

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Priority Score

35
Low Medium High Critical
KEV: 0
EPSS: +0.0
CVSS: +35
POC: 0

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CVE-2026-25179 vulnerability details – vuln.today
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