CVE-2015-3666: Apple Mac OS X

Medium severity, CVSS 6.8. EPSS: 3.1% chance of exploitation in the next 30 days.

QT Media Foundation in Apple QuickTime before 7.7.7, as used in OS X before 10.10.4 and other products, allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted file, a different vulnerability than CVE-2015-3661, CVE-2015-3662, CVE-2015-3663, CVE-2015-3667, and CVE-2015-3668.

Affected products

• Apple Mac OS X: up to and including 10.10.3
• Apple Quicktime: up to and including 7.7.6

Published 2015-07-03. Last modified 2026-06-17.