CVE-2008-2309: Apple Mac OS X

Medium severity, CVSS 6.8. EPSS: 2.6% chance of exploitation in the next 30 days.

Incomplete blacklist vulnerability in CoreTypes in Apple Mac OS X before 10.5.4 allows user-assisted remote attackers to execute arbitrary code via a (1) .xht or (2) .xhtm file, which does not trigger a "potentially unsafe" warning message in (a) the Download Validation feature in Mac OS X 10.4 or (b) the Quarantine feature in Mac OS X 10.5.

Affected products

• Apple Mac OS X: 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; version 10.4.6 only; …
• Apple Mac OS X Server: 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; version 10.4.6 only; …

Published 2008-07-01. Last modified 2026-06-16.