CVE-2018-4428: Apple iPhone OS

High severity, CVSS 7.1. EPSS: 0.3% chance of exploitation in the next 30 days.

A lock screen issue allowed access to the share function on a locked device. This issue was addressed by restricting options offered on a locked device. This issue is fixed in iOS 12.1.1. A local attacker may be able to share items from the lock screen.

Affected products

• Apple iPhone OS: before 12.1.1 (fixed in 12.1.1)

Published 2020-10-27. Last modified 2026-06-17.