What is CVE-2026-14397?

CVE-2026-14397 is a critical-severity vulnerability in Apple macOS, classified under Out-of-bounds Write. CVSS score: 9.6/10. Published 2026-07-01.

How severe is CVE-2026-14397?

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

Buffer overflow in Apple macOS

CVE-2026-14397

Out of bounds write in ANGLE in Google Chrome on Mac prior to 150.0.7871.46 allowed a remote attacker to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: Medium)

Vulnerability class: Buffer Overflow

Published 2026-07-01 · last modified 2026-07-03.

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

EPSS: 0.003 (25.6th percentile), scored 2026-10-02.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 26th percentile — 25.6% 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

Apple macOS
Google Chrome — versions 150.0.7871.46

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop_0175352… (Release Notes, Vendor Advisory)
issues.chromium.org/issues/511772608 (Permissions Required)

Frequently asked questions

What is CVE-2026-14397?: CVE-2026-14397 is a critical-severity vulnerability in Apple macOS, classified under Out-of-bounds Write. CVSS score: 9.6/10. Published 2026-07-01.
How severe is CVE-2026-14397?: Critical severity. CVSS v3 base score is 9.6 out of 10.