Vulnerability in Microsoft Edge Chromium
CVE-2026-57980
Authentication bypass using an alternate path or channel in Microsoft Edge (Chromium-based) allows an unauthorized attacker to perform tampering over a network.
EPSS: 0.004 (32.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N.
Affected products
- Microsoft Edge_chromium
- Microsoft Edge (Chromium-based) — versions 1.0.0.0
Weakness classification (CWE)
References
- Microsoft Edge (Chromium-based) Tampering Vulnerability (vendor-advisory, patch, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-57980?
- CVE-2026-57980 is a medium-severity vulnerability in Microsoft Edge Chromium, classified under Authentication Bypass Using an Alternate Path or Channel. CVSS score: 5.4/10. Published 2026-07-17.
- How severe is CVE-2026-57980?
- Medium severity. CVSS v3 base score is 5.4 out of 10.