Vulnerability in Microsoft Edge Chromium
CVE-2025-53791
Improper access control in Microsoft Edge (Chromium-based) allows an unauthorized attacker to bypass a security feature over a network.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.7 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.004 (30.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 31st percentile — 30.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
- Microsoft Edge Chromium
- Microsoft Edge (Chromium-Based) — versions 1.0.0.0
Weakness classification (CWE)
References
- msrc.microsoft.com/update-guide/vulnerability/CVE-2025-53791 (vendor-advisory, patch, Vendor Advisory)
Frequently asked questions
- What is CVE-2025-53791?
- CVE-2025-53791 is a medium-severity vulnerability in Microsoft Edge Chromium, classified under Improper Access Control. CVSS score: 4.7/10. Published 2025-09-05.
- How severe is CVE-2025-53791?
- Medium severity. CVSS v3 base score is 4.7 out of 10.