CVE-2011-0231: Apple Mac OS X

Medium severity, CVSS 5.0. EPSS: 1.4% chance of exploitation in the next 30 days.

CFNetwork in Apple Mac OS X before 10.7.2 does not properly follow an intended cookie-storage policy, which makes it easier for remote web servers to track users via a cookie, related to a "synchronization issue."

Affected products

• Apple Mac OS X: up to and including 10.7.1; version 10.0 only; version 10.0.0 only; version 10.0.1 only; version 10.0.2 only; version 10.0.3 only; …
• Apple Mac OS X Server: up to and including 10.7.1; version 10.0 only; version 10.0.0 only; version 10.0.1 only; version 10.0.2 only; version 10.0.3 only; …

Published 2011-10-14. Last modified 2026-06-16.