CVE-2019-8663: Apple iPhone OS

Medium severity, CVSS 5.3. EPSS: 6.7% chance of exploitation in the next 30 days.

This issue was addressed with improved checks. This issue is fixed in iOS 12.4, macOS Mojave 10.14.6. A remote attacker may be able to leak memory.

Affected products

• Apple iPhone OS: before 12.4 (fixed in 12.4)
• Apple Mac OS X: before 10.14.6 (fixed in 10.14.6)

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