CVE-2019-8755: Apple Mac OS X

High severity, CVSS 7.8. EPSS: 0.4% chance of exploitation in the next 30 days.

A logic issue was addressed with improved restrictions. This issue is fixed in macOS Catalina 10.15. A malicious application may be able to determine kernel memory layout.

Affected products

• Apple Mac OS X: before 10.15 (fixed in 10.15)

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