CVE-2012-3751: Apple Quicktime

High severity, CVSS 9.3. EPSS: 4.4% chance of exploitation in the next 30 days.

Use-after-free vulnerability in the plugin in Apple QuickTime before 7.7.3 allows remote attackers to execute arbitrary code or cause a denial of service (application crash) via an HTML document with a crafted _qtactivex_ parameter in an OBJECT element.

Affected products

• Apple Quicktime: up to and including 7.7.2; version 3.0 only; version 4.1.2 only; version 5.0 only; version 5.0.1 only; version 5.0.2 only; …

Published 2012-11-09. Last modified 2026-06-16.