CVE-2016-9935: PHP

Critical severity, CVSS 9.8. EPSS: 7% chance of exploitation in the next 30 days.

The php_wddx_push_element function in ext/wddx/wddx.c in PHP before 5.6.29 and 7.x before 7.0.14 allows remote attackers to cause a denial of service (out-of-bounds read and memory corruption) or possibly have unspecified other impact via an empty boolean element in a wddxPacket XML document.

Affected products

• PHP PHP: up to and including 5.6.28; version 7.0.0 only; version 7.0.1 only; version 7.0.2 only; version 7.0.3 only; version 7.0.4 only; …

Published 2017-01-04. Last modified 2026-06-17.