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.

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.

EPSS: 0.004 (29.1th percentile) — read the EPSS interpretation.

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.

Affected products

Microsoft Edge_chromium
Microsoft Edge (Chromium-based) — versions 1.0.0.0

Weakness classification (CWE)

CWE-284 — Improper Access Control

References

secure@microsoft.com (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.