CVE-2016-1756: Apple iPhone OS

High severity, CVSS 7.8. EPSS: 1.4% chance of exploitation in the next 30 days.

The kernel in Apple iOS before 9.3 and OS X before 10.11.4 allows attackers to execute arbitrary code in a privileged context or cause a denial of service (NULL pointer dereference) via a crafted app.

Affected products

• Apple iPhone OS: up to and including 9.2.1
• Apple Mac OS X: up to and including 10.11.3

Published 2016-03-24. Last modified 2026-06-17.