CVE-2015-3766: Apple iPhone OS

Medium severity, CVSS 4.3. EPSS: 1.5% chance of exploitation in the next 30 days.

The kernel in Apple iOS before 8.4.1 and OS X before 10.10.5 does not properly restrict the mach_port_space_info interface, which allows attackers to obtain sensitive memory-layout information via a crafted app.

Affected products

• Apple iPhone OS: up to and including 8.4
• Apple Mac OS X: up to and including 10.10.4

Published 2015-08-16. Last modified 2026-06-17.