CVE-2011-3231: Apple Safari

Medium severity, CVSS 6.8. EPSS: 1.4% chance of exploitation in the next 30 days.

The SSL implementation in Apple Safari before 5.1.1 on Mac OS X before 10.7 accesses uninitialized memory during the processing of X.509 certificates, which allows remote web servers to execute arbitrary code via a crafted certificate.

Affected products

• Apple Safari: any version; up to and including 5.1; version 1.0 only; version 1.0.0 only; version 1.0.0b1 only; version 1.0.0b2 only; …

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