CVE-2018-4356: Apple iPhone OS

Medium severity, CVSS 5.3. EPSS: 1% chance of exploitation in the next 30 days.

A permissions issue existed. This issue was addressed with improved permission validation. This issue affected versions prior to iOS 12.

Affected products

• Apple iPhone OS: before 12.0 (fixed in 12.0)

Published 2019-04-03. Last modified 2026-06-17.