What is CVE-2026-85042?

CVE-2026-85042 is a critical-severity vulnerability, classified under Use After Free. CVSS score: 9.6/10. Published 2026-09-03.

How severe is CVE-2026-85042?

Critical severity. CVSS v3 base score is 9.6 out of 10.

CVE-2026-85042

CVE-2026-85042

Use after free in DevTools in Google Chrome prior to 152.0.7977.82 allowed a remote attacker to execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: High)

Vulnerability class: Use-After-Free

CVSS v3 metric

CVSS v3 base score 9.6 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H.

Weakness classification (CWE)

CWE-416 — Use After Free

References

chrome-cve-admin@google.com
chrome-cve-admin@google.com

Frequently asked questions

What is CVE-2026-85042?: CVE-2026-85042 is a critical-severity vulnerability, classified under Use After Free. CVSS score: 9.6/10. Published 2026-09-03.
How severe is CVE-2026-85042?: Critical severity. CVSS v3 base score is 9.6 out of 10.