CVE-2018-4185: Apple iPhone OS

High severity, CVSS 7.5. EPSS: 3% chance of exploitation in the next 30 days.

In iOS before 11.3, tvOS before 11.3, watchOS before 4.3, and macOS before High Sierra 10.13.4, an information disclosure issue existed in the transition of program state. This issue was addressed with improved state handling.

Affected products

• Apple iPhone OS: before 11.3 (fixed in 11.3)
• Apple Mac OS X: before 10.13.4 (fixed in 10.13.4)
• Apple tvOS: before 11.3 (fixed in 11.3)
• Apple watchOS: before 4.3 (fixed in 4.3)

Published 2019-01-11. Last modified 2026-06-17.