CVE-2011-3216: Apple Mac OS X

Low severity, CVSS 2.1. EPSS: 0.3% chance of exploitation in the next 30 days.

The kernel in Apple Mac OS X before 10.7.2 does not properly implement the sticky bit for directories, which might allow local users to bypass intended permissions and delete files via an unlink system call.

Affected products

• Apple Mac OS X: up to and including 10.7.1; version 10.0 only; version 10.0.0 only; version 10.0.1 only; version 10.0.2 only; version 10.0.3 only; …
• Apple Mac OS X Server: up to and including 10.7.1; version 10.0 only; version 10.0.0 only; version 10.0.1 only; version 10.0.2 only; version 10.0.3 only; …

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