What is CVE-2026-102331?

CVE-2026-102331 is a critical-severity vulnerability in Google Chrome, classified under Heap-based Buffer Overflow. CVSS score: 9.6/10. Published 2026-09-29.

How severe is CVE-2026-102331?

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

Buffer overflow in Google Chrome

CVE-2026-102331

Buffer overflow in ANGLE in Google Chrome on on Android prior to 154.0.8037.92 allowed a remote attacker to potentially execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: Critical)

Vulnerability class: Buffer Overflow

Published 2026-09-29 · last modified 2026-09-30.

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.

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

Google Chrome

Weakness classification (CWE)

CWE-122 — Heap-based Buffer Overflow

References

chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop_0180748… (Release Notes, Vendor Advisory)
issues.chromium.org/issues/551673541 (Permissions Required)

Frequently asked questions

What is CVE-2026-102331?: CVE-2026-102331 is a critical-severity vulnerability in Google Chrome, classified under Heap-based Buffer Overflow. CVSS score: 9.6/10. Published 2026-09-29.
How severe is CVE-2026-102331?: Critical severity. CVSS v3 base score is 9.6 out of 10.