What is CVE-2025-13042?

CVE-2025-13042 is a high-severity vulnerability in Apple macOS, classified under Out-of-bounds Write. CVSS score: 8.8/10. Published 2025-11-12.

How severe is CVE-2025-13042?

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

Buffer overflow in Apple macOS

CVE-2025-13042

Inappropriate implementation in V8 in Google Chrome prior to 142.0.7444.166 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)

Vulnerability class: Buffer Overflow

Published 2025-11-12 · last modified 2026-09-26.

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.

EPSS exploit prediction

EPSS: 0.003 (16.1th percentile), scored 2026-10-03.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 16th percentile — 16.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

chromereleases.googleblog.com/2025/11/stable-channel-update-for-desktop_11.html (Release Notes, Vendor Advisory)
issues.chromium.org/issues/457351015 (Permissions Required, Issue Tracking)

Frequently asked questions

What is CVE-2025-13042?: CVE-2025-13042 is a high-severity vulnerability in Apple macOS, classified under Out-of-bounds Write. CVSS score: 8.8/10. Published 2025-11-12.
How severe is CVE-2025-13042?: High severity. CVSS v3 base score is 8.8 out of 10.