CVE-2026-25187

high

Description

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

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-25187

https://www.helpnetsecurity.com/2026/03/11/march-2026-patch-tuesday/

https://thehackernews.com/2026/03/microsoft-patches-84-flaws-in-march.html

https://cyberscoop.com/microsoft-patch-tuesday-march-2026/

https://github.com/eip-public/win11-forge

https://www.vicarius.io/vsociety/posts/cve-2026-25187-mitigation-script-winlogon-elevation-of-privilege-vulnerability

https://www.vicarius.io/vsociety/posts/cve-2026-25187-detection-script-winlogon-elevation-of-privilege-vulnerability

Details

Source: Mitre, NVD

Published: 2026-03-10

Updated: 2026-05-26

Risk Information

CVSS v2

Base Score: 6.8

Vector: CVSS2#AV:L/AC:L/Au:S/C:C/I:C/A:C

Severity: Medium

CVSS v3

Base Score: 7.8

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Severity: High

EPSS

EPSS: 0.00122