CVE-2008-3621: Apple Mac OS X

High severity, CVSS 9.3. EPSS: 5.8% chance of exploitation in the next 30 days.

VideoConference in Apple Mac OS X 10.4.11 and 10.5 through 10.5.4 allows remote attackers to cause a denial of service (memory corruption and application crash) or execute arbitrary code via vectors involving H.264 encoded media.

Affected products

• Apple Mac OS X: version 10.4.11 only; 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 10.4.11 only; 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.