CVE-2026-25187

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

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

Description

Improper link resolution before file access ('link following') in Winlogon allows an authorized attacker to elevate privileges locally.

Analysis

Windows Winlogon's failure to properly validate symbolic links before file access enables local privilege escalation on affected Windows Server and Windows 10/11 systems. An authenticated attacker can exploit this vulnerability to gain elevated system privileges without user interaction. …

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Remediation

Within 24 hours: Inventory all systems running affected Winlogon versions and assess user access patterns for suspicious privilege escalation attempts. Within 7 days: Implement enhanced monitoring on privileged account activity, restrict local administrative rights where feasible, and brief security teams on detection signatures. …

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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-2026-25187 vulnerability details – vuln.today
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