Vulnerability in Microsoft Edge Chromium

CVE-2025-21279

Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability

Published · last modified .

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.016 (75.2th percentile), scored .

Low probability of exploitation in the next 30 days, but still tracked. 75th percentile — 75.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2025-21279: held from 0.016 to 0.016.

EPSS over last 30 days · oldest: 0.016 · newest: 0.016 · change: 0.000

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2025-21279?
CVE-2025-21279 is a medium-severity vulnerability in Microsoft Edge Chromium, classified under Access of Resource Using Incompatible Type (Type Confusion). CVSS score: 6.5/10. Published 2025-02-06.
How severe is CVE-2025-21279?
Medium severity. CVSS v3 base score is 6.5 out of 10.