CVE-2015-5940: Apple iPhone OS

Medium severity, CVSS 6.8. EPSS: 2.3% chance of exploitation in the next 30 days.

The Accelerate Framework component in Apple iOS before 9.1 and OS X before 10.11.1, when multi-threading is enabled, omits certain validation and locking steps, which allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site.

Affected products

• Apple iPhone OS: up to and including 9.0.2
• Apple Mac OS X: up to and including 10.11.0

Published 2015-10-23. Last modified 2026-06-17.