CVE-2015-2787: Apple Mac OS X

High severity, CVSS 7.5. EPSS: 12.2% chance of exploitation in the next 30 days.

Use-after-free vulnerability in the process_nested_data function in ext/standard/var_unserializer.re in PHP before 5.4.39, 5.5.x before 5.5.23, and 5.6.x before 5.6.7 allows remote attackers to execute arbitrary code via a crafted unserialize call that leverages use of the unset function within an __wakeup function, a related issue to CVE-2015-0231.

Affected products

• Apple Mac OS X: up to and including 10.6.8; version 10.9.5 only; version 10.10.0 only; version 10.10.1 only; version 10.10.2 only; version 10.10.3 only; …
• Opensuse Opensuse: version 13.1 only; version 13.2 only
• PHP PHP: up to and including 5.4.38; version 5.5.0 only; version 5.5.1 only; version 5.5.2 only; version 5.5.3 only; version 5.5.4 only; …
• Red Hat Enterprise Linux Desktop: version 7.0 only
• Red Hat Enterprise Linux Hpc Node: version 7.0 only
• Red Hat Enterprise Linux Hpc Node Eus: version 7.1 only
• Red Hat Enterprise Linux Server: version 7.0 only
• Red Hat Enterprise Linux Server Eus: version 7.1 only
• Red Hat Enterprise Linux Workstation: version 7.0 only

Published 2015-03-30. Last modified 2026-06-17.