CVE-2018-4290: Apple iPhone OS

Medium severity, CVSS 5.9. EPSS: 0.8% chance of exploitation in the next 30 days.

A denial of service issue was addressed with improved memory handling. This issue affected versions prior to iOS 11.4.1, watchOS 4.3.2.

Affected products

• Apple iPhone OS: before 11.4.1 (fixed in 11.4.1)
• Apple watchOS: before 4.3.2 (fixed in 4.3.2)

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