What is CVE-2026-88097?

CVE-2026-88097 is a high-severity vulnerability in Microsoft Edge (Chromium-Based), classified under Use After Free. CVSS score: 8.1/10. Published 2026-09-18.

How severe is CVE-2026-88097?

High severity. CVSS v3 base score is 8.1 out of 10.

Use After Free in Microsoft Edge (Chromium-Based)

CVE-2026-88097

Use after free in Microsoft Edge (Chromium-based) allows an unauthorized attacker to elevate privileges locally.

Vulnerability class: Use-After-Free

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H.

Affected products

Microsoft Edge (Chromium-based)

Weakness classification (CWE)

CWE-416 — Use After Free

References

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

Frequently asked questions

What is CVE-2026-88097?: CVE-2026-88097 is a high-severity vulnerability in Microsoft Edge (Chromium-Based), classified under Use After Free. CVSS score: 8.1/10. Published 2026-09-18.
How severe is CVE-2026-88097?: High severity. CVSS v3 base score is 8.1 out of 10.