CVE-2019-6205: Apple iPhone OS

High severity, CVSS 7.8. EPSS: 4.1% chance of exploitation in the next 30 days.

A memory corruption issue was addressed with improved lock state checking. This issue is fixed in iOS 12.1.3, macOS Mojave 10.14.3, tvOS 12.1.2. A malicious application may cause unexpected changes in memory shared between processes.

Affected products

• Apple iPhone OS: before 12.1.3 (fixed in 12.1.3)
• Apple Mac OS X: before 10.14.3 (fixed in 10.14.3)
• Apple tvOS: before 12.1.2 (fixed in 12.1.2)

Published 2019-03-05. Last modified 2026-06-17.