CVE-2018-4123: Apple iPhone OS

Low severity, CVSS 2.4. EPSS: 0.4% chance of exploitation in the next 30 days.

An issue was discovered in certain Apple products. iOS before 11.3 is affected. The issue involves alarm and timer handling in the "Clock" component. It allows physically proximate attackers to discover the iTunes e-mail address.

Affected products

• Apple iPhone OS: before 11.3 (fixed in 11.3)

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