CVE-2014-1255: Apple Mac OS X

High severity, CVSS 7.5. EPSS: 1.6% chance of exploitation in the next 30 days.

Apple Type Services (ATS) in Apple OS X before 10.9.2 does not properly validate calls to the free function, which allows attackers to bypass the App Sandbox protection mechanism via crafted Mach messages.

Affected products

• Apple Mac OS X: up to and including 10.9.1; version 10.9 only

Published 2014-02-27. Last modified 2026-06-17.