CVE-2026-25187
CVE-2026-25187
7.8
HighPublished:
Last updated:
Source:secure@microsoft.com
Modified
Weakness (CWE)
CVSS Vector
v3.1- Attack Vector
- Local
- Attack Complexity
- Low
- Privileges Required
- Low
- User Interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Description
Improper link resolution before file access ('link following') in Winlogon allows an authorized attacker to elevate privileges locally.
References
secure@microsoft.com
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-25187af854a3a-2127-422b-91ae-364da2661108
https://www.vicarius.io/vsociety/posts/cve-2026-25187-detection-script-winlogon-elevation-of-privilege-vulnerabilityaf854a3a-2127-422b-91ae-364da2661108
https://www.vicarius.io/vsociety/posts/cve-2026-25187-mitigation-script-winlogon-elevation-of-privilege-vulnerability