CVE-2007-1889: Integer signedness error in the _zend_mm_alloc_int function in the Zend Memory Manager in PHP 5.2.0 allows...

Security readout for executives and security teams

This is an old PHP 5.2.0 memory-management flaw that could let a remote attacker run code if an exposed application reaches vulnerable allocation paths. The source bundle does not provide CVSS, confirmed affected distributions beyond the advisories, or evidence of active exploitation. Exposure is most plausible in legacy environments still running PHP 5.2.0, especially applications using the affected SOAP client behavior or System V message queue msg_receive path. Modern supported PHP deployments should not be assumed affected from the provided bundle alone. Treat this as a legacy technology risk. It is high impact if PHP 5.2.0 remains exposed, but urgency depends on whether the organization still operates that obsolete runtime. Mitigation focus: Inventory systems for PHP 5.2.0 runtimes and embedded copies.; Apply relevant Debian, SUSE, PHP, or platform vendor security guidance.; Upgrade unsupported PHP 5.2.0 deployments to supported vendor-fixed releases..

Prepared

Jun 29, 2026, 06:24 UTC (UTC+00:00)

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