CVE-2008-3609: Apple Mac OS X

High severity, CVSS 7.2. EPSS: 0.4% chance of exploitation in the next 30 days.

The kernel in Apple Mac OS X 10.5 through 10.5.4 does not properly flush cached credentials during recycling (aka purging) of a vnode, which might allow local users to bypass the intended read or write permissions of a file.

Affected products

• Apple Mac OS X: version 10.5 only; version 10.5.1 only; version 10.5.2 only; version 10.5.3 only; version 10.5.4 only
• Apple Mac OS X Server: version 10.5 only; version 10.5.1 only; version 10.5.2 only; version 10.5.3 only; version 10.5.4 only

Published 2008-09-16. Last modified 2026-06-16.