CVSS v3
7.8
HIGH
EPSS Score
6.9 %
exploit probability
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
Improper link resolution before file access ('link following') in Windows Update Stack allows an authorized attacker to elevate privileges locally.
Technical details
- Published
- 2025-04-08
Frequently asked questions
What is CVE-2025-21204?
Improper link resolution before file access ('link following') in Windows Update Stack allows an authorized attacker to elevate privileges locally.
Is CVE-2025-21204 actively exploited?
Active exploitation of CVE-2025-21204 has not been confirmed. The EPSS score is 6.9%, indicating the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2025-21204?
CVE-2025-21204 has a CVSS v3 base score of 7.8 (HIGH severity).
Is CVE-2025-21204 affecting your environment?
Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.
No credit card required · 500 free checks/month · Free API key
Other 2025 vulnerabilities worth triaging
Ranked by exploit probability (EPSS).