CVE-2009-0006: Apple Quicktime

High severity, CVSS 9.3. EPSS: 8.2% chance of exploitation in the next 30 days.

Integer signedness error in Apple QuickTime before 7.6 allows remote attackers to cause a denial of service (application termination) and possibly execute arbitrary code via a Cinepak encoded movie file with a crafted MDAT atom that triggers a heap-based buffer overflow.

Affected products

• Apple Quicktime: up to and including 7.5.5; version 3.0 only; version 4.1.2 only; version 5.0 only; version 5.0.1 only; version 5.0.2 only; …

Published 2009-01-21. Last modified 2026-06-16.