CVE-2018-4115: Apple iPhone OS

Critical severity, CVSS 9.8. EPSS: 2.2% chance of exploitation in the next 30 days.

An issue was discovered in certain Apple products. iOS before 11.3 is affected. macOS before 10.13.4 is affected. tvOS before 11.3 is affected. watchOS before 4.3 is affected. The issue involves CFPreferences in the "System Preferences" component. It allows attackers to bypass intended access restrictions by leveraging incorrect configuration-profile persistence.

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 2018-04-03. Last modified 2026-06-17.