CVE-2016-7413: Use-after-free vulnerability in the wddx_stack_destroy function in ext/wddx/wddx.c in PHP before 5.6.26 and...

Security readout for executives and security teams

This is a memory-safety flaw in PHP's WDDX handling. A specially malformed WDDX XML document can crash a vulnerable PHP process and may have other unspecified effects. The clearest business risk is service disruption in applications that deserialize WDDX data on PHP versions before 5.6.26 or 7.0.11. Exposure is most likely where legacy PHP 5.6.x before 5.6.26 or PHP 7.0.x before 7.0.11 processes untrusted WDDX input. The provided CVE data does not identify specific applications, deployments, or default exposure conditions. Treat as a legacy PHP remediation item with moderate urgency. Prioritize internet-facing or partner-fed applications that deserialize WDDX data, especially where PHP runtimes are unsupported or difficult to patch quickly. Mitigation focus: Upgrade PHP to 5.6.26, 7.0.11, or a vendor-supported fixed package.; Apply relevant distribution advisories, including Gentoo GLSA-201611-22 or Red Hat RHSA-2018:1296 where applicable.; Identify applications using PHP WDDX deserialization and prioritize them for remediation..

Prepared

Jun 13, 2026, 13:39 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.