What is CVE-2026-15123?

CVE-2026-15123 is a high-severity vulnerability in Google Chrome, classified under Heap-based Buffer Overflow. CVSS score: 8.8/10. Published 2026-07-08.

How severe is CVE-2026-15123?

High severity. CVSS v3 base score is 8.8 out of 10.

Buffer overflow in Google Chrome

CVE-2026-15123

Inappropriate implementation in DOM in Google Chrome prior to 150.0.7871.115 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)

Vulnerability class: Buffer Overflow

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Google Chrome — versions 150.0.7871.115

Weakness classification (CWE)

CWE-122 — Heap-based Buffer Overflow

References

chrome-cve-admin@google.com (Release Notes, Vendor Advisory)
chrome-cve-admin@google.com (Permissions Required)

Frequently asked questions

What is CVE-2026-15123?: CVE-2026-15123 is a high-severity vulnerability in Google Chrome, classified under Heap-based Buffer Overflow. CVSS score: 8.8/10. Published 2026-07-08.
How severe is CVE-2026-15123?: High severity. CVSS v3 base score is 8.8 out of 10.