What is CVE-2026-45492?

CVE-2026-45492 is a medium-severity vulnerability in Microsoft Edge_chromium, classified under Improper Input Validation. CVSS score: 5.4/10. Published 2026-05-18.

How severe is CVE-2026-45492?

Medium severity. CVSS v3 base score is 5.4 out of 10.

Improper input validation in Microsoft Edge_chromium

CVE-2026-45492

Improper input validation in Microsoft Edge (Chromium-based) allows an unauthorized attacker to bypass a security feature over a network.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

EPSS: 0.001 (33.6th 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)

CWE-20 — Improper Input Validation

References

Microsoft Edge (Chromium-based) Security Feature Bypass Vulnerability (vendor-advisory, patch, Vendor Advisory)

Frequently asked questions

What is CVE-2026-45492?: CVE-2026-45492 is a medium-severity vulnerability in Microsoft Edge_chromium, classified under Improper Input Validation. CVSS score: 5.4/10. Published 2026-05-18.
How severe is CVE-2026-45492?: Medium severity. CVSS v3 base score is 5.4 out of 10.