What is CVE-2025-12433?

CVE-2025-12433 is a medium-severity vulnerability in Apple macOS. CVSS score: 4.3/10. Published 2025-11-10.

How severe is CVE-2025-12433?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Vulnerability in Apple macOS

CVE-2025-12433

Inappropriate implementation in V8 in Google Chrome prior to 142.0.7444.59 allowed a remote attacker to perform out of bounds memory access via a crafted HTML page. (Chromium security severity: High)

Published 2025-11-10 · last modified 2026-09-30.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.003 (18.7th percentile), scored 2026-10-02.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 19th percentile — 18.7% 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

References

chromereleases.googleblog.com/2025/10/stable-channel-update-for-desktop_28.html (Release Notes, Vendor Advisory)
issues.chromium.org/issues/449760249 (Permissions Required, Issue Tracking)

Frequently asked questions

What is CVE-2025-12433?: CVE-2025-12433 is a medium-severity vulnerability in Apple macOS. CVSS score: 4.3/10. Published 2025-11-10.
How severe is CVE-2025-12433?: Medium severity. CVSS v3 base score is 4.3 out of 10.