Vulnerability in Microsoft Edge (Chromium-Based)

CVE-2026-88090

Access of resource using incompatible type ('type confusion') in Microsoft Edge (Chromium-based) allows an unauthorized attacker to elevate privileges over a network.

Published · last modified .

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.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-88090?
CVE-2026-88090 is a medium-severity vulnerability in Microsoft Edge (Chromium-Based), classified under Access of Resource Using Incompatible Type (Type Confusion). CVSS score: 5.4/10. Published 2026-10-29.
How severe is CVE-2026-88090?
Medium severity. CVSS v3 base score is 5.4 out of 10.