CVE-2007-4691: Apple Mac OS X

High severity, CVSS 10.0. EPSS: 2.1% chance of exploitation in the next 30 days.

The NSURL component in Apple Mac OS X 10.4 through 10.4.10 performs case-sensitive comparisons that allow attackers to bypass intended restrictions for local file system URLs.

Affected products

• Apple Mac OS X: version 10.3.9 only; version 10.4.1 only; version 10.4.2 only; version 10.4.3 only; version 10.4.4 only; version 10.4.5 only; …
• Apple Mac OS X Server: version 10.3.9 only; version 10.4.1 only; version 10.4.2 only; version 10.4.3 only; version 10.4.4 only; version 10.4.5 only; …

Published 2007-11-15. Last modified 2026-06-16.