CVE-2025-21204
HighPublished
Windows Process Activation Elevation of Privilege Vulnerability
- Published
- Apr 8, 2025
- Updated
- Aug 10, 2026
- Assigning CNA
- microsoft
- Evidence observed
- Aug 11, 2026
Primary CVSS
7.8/ 10High
nvd · CVSS 3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H7.0%
Low · next 30 days
- Percentile
- 93.9%
- Model date
- Sep 21, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
Summary
Improper link resolution before file access ('link following') in Windows Update Stack allows an authorized attacker to elevate privileges locally.
Sources
1- exploitsExploit
exploits and proof-of-concept vulnerability demonstration files from the team at Hacker House
Responsible use
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