CVE-2011-3432: Apple iPhone OS

Medium severity, CVSS 5.0. EPSS: 2.2% chance of exploitation in the next 30 days.

The UIKit Alerts component in Apple iOS before 5 allows remote attackers to cause a denial of service (device hang) via a long tel: URL that triggers a large size for the acceptance dialog.

Affected products

• Apple iPhone OS: version 3.0 only; version 3.1 only; version 3.1.2 only; version 3.1.3 only; version 3.2 only; version 3.2.1 only; …

Published 2011-10-14. Last modified 2026-06-16.