CVSS 3.1
7.4 highCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:HCVE-2025-21399
High (7.4) in microsoft edge update. EPSS 0.7% chance of exploitation in the next 30 days.
Microsoft Edge (Chromium-based) Update Elevation of Privilege Vulnerability
Severity
- EPSS
- 0.7% chance of exploitation in the next 30 days; higher than 52% of CVEs (scores of 2026-10-31)
- CWE
- CWE-426
- Published
- Modified
- Record from
- the NVD, synced
Affected
- microsoft:edge_update
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21399
- https://www.vicarius.io/vsociety/posts/elevation-of-privilege-vulnerability-in-microsoft-edge-chromium-based-detection-script
- https://www.vicarius.io/vsociety/posts/elevation-of-privilege-vulnerability-in-microsoft-edge-chromium-based-mitigation-script