CVE-2019-8641: Apple iPhone OS

Critical severity, CVSS 9.8. EPSS: 17% chance of exploitation in the next 30 days.

An out-of-bounds read was addressed with improved input validation.

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)
• Apple tvOS: before 12.4 (fixed in 12.4)
• Apple watchOS: before 5.3 (fixed in 5.3)

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