CVE-2016-5772: Debian Linux

Critical severity, CVSS 9.8. EPSS: 9.7% chance of exploitation in the next 30 days.

Double free vulnerability in the php_wddx_process_data function in wddx.c in the WDDX extension in PHP before 5.5.37, 5.6.x before 5.6.23, and 7.x before 7.0.8 allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via crafted XML data that is mishandled in a wddx_deserialize call.

Affected products

• Debian Debian Linux: version 8.0 only
• Opensuse Leap: version 42.1 only
• Opensuse Opensuse: version 13.2 only
• PHP PHP: before 5.5.37 (fixed in 5.5.37); from 5.6.0, before 5.6.23 (fixed in 5.6.23); from 7.0.0, before 7.0.8 (fixed in 7.0.8)
• Suse Linux Enterprise Debuginfo: version 11 only
• Suse Linux Enterprise Server: version 11 only
• Suse Linux Enterprise Software Development Kit: version 11 only

Published 2016-08-07. Last modified 2026-06-17.