CVE-2018-4110: Apple iPhone OS

Critical severity, CVSS 9.8. EPSS: 3.8% 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 the "Web App" component. It allows remote attackers to bypass intended restrictions on cookie persistence.

Affected products

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

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