What is CVE-2026-58597?

CVE-2026-58597 is a medium-severity vulnerability in Microsoft Edge (Chromium-based), classified under CWE-357. CVSS score: 4.3/10. Published 2026-07-03.

How severe is CVE-2026-58597?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Vulnerability in Microsoft Edge (Chromium-based)

CVE-2026-58597

Insufficient ui warning of dangerous operations in Microsoft Edge (Chromium-based) allows an unauthorized attacker to perform spoofing over a network.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N.

Affected products

Microsoft Edge (Chromium-based) — versions 1.0.0.0

Weakness classification (CWE)

CWE-357

References

secure@microsoft.com (vendor-advisory, patch)

Frequently asked questions

What is CVE-2026-58597?: CVE-2026-58597 is a medium-severity vulnerability in Microsoft Edge (Chromium-based), classified under CWE-357. CVSS score: 4.3/10. Published 2026-07-03.
How severe is CVE-2026-58597?: Medium severity. CVSS v3 base score is 4.3 out of 10.