CVE-2018-4282: Apple iPhone OS

Medium severity, CVSS 5.5. EPSS: 0.3% chance of exploitation in the next 30 days.

An out-of-bounds read issue existed that led to the disclosure of kernel memory. This was addressed with improved input validation. This issue affected versions prior to iOS 11.4.1, tvOS 11.4.1, watchOS 4.3.2.

Affected products

• Apple iPhone OS: before 11.4.1 (fixed in 11.4.1)
• Apple tvOS: 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.