CVE-2019-8603: Apple Mac OS X

High severity, CVSS 8.8. EPSS: 1.2% chance of exploitation in the next 30 days.

A validation issue was addressed with improved input sanitization. This issue is fixed in macOS Mojave 10.14.5. An application may be able to read restricted memory.

Affected products

• Apple Mac OS X: before 10.14.5 (fixed in 10.14.5)

Published 2019-12-18. Last modified 2026-06-17.