CVE-2015-7023: Apple iPhone OS

Medium severity, CVSS 5.8. EPSS: 1.6% chance of exploitation in the next 30 days.

CFNetwork in Apple iOS before 9.1 and OS X before 10.11.1 does not properly consider the uppercase-versus-lowercase distinction during cookie parsing, which allows remote web servers to overwrite cookies via unspecified vectors.

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.