CVE-2011-0251: Apple Quicktime

High severity, CVSS 9.3. EPSS: 5.1% chance of exploitation in the next 30 days.

Heap-based buffer overflow in Apple QuickTime before 7.7 allows remote attackers to execute arbitrary code or cause a denial of service (application crash) via crafted STSZ atoms in a QuickTime movie file.

Affected products

• Apple Quicktime: up to and including 7.6.9; version 3.0 only; version 4.1.2 only; version 5.0 only; version 5.0.1 only; version 5.0.2 only; …

Published 2011-08-04. Last modified 2026-06-16.