CVE-2018-4424: Apple Mac OS X

High severity, CVSS 7.8. EPSS: 0.9% chance of exploitation in the next 30 days.

A buffer overflow was addressed with improved size validation. This issue affected versions prior to macOS Mojave 10.14.1.

Affected products

• Apple Mac OS X: before 10.14.1 (fixed in 10.14.1)

Published 2019-04-03. Last modified 2026-06-17.