CVE-2013-0977: Apple iPhone OS

Medium severity, CVSS 4.6. EPSS: 0.4% chance of exploitation in the next 30 days.

dyld in Apple iOS before 6.1.3 and Apple TV before 5.2.1 does not properly manage the state of file loading for Mach-O executable files, which allows local users to bypass intended code-signing requirements via a file that contains overlapping segments.

Affected products

• Apple iPhone OS: up to and including 6.1.2; version 1.0.0 only; version 1.0.1 only; version 1.0.2 only; version 1.1.0 only; version 1.1.1 only; …
• Apple tvOS: up to and including 5.2.0; version 1.0.0 only; version 1.1.0 only; version 2.0.0 only; version 2.0.1 only; version 2.0.2 only; …

Published 2013-03-20. Last modified 2026-06-16.