CVE-2007-4659: The zend_alter_ini_entry function in PHP before 5.2.4 does not properly handle an interruption to the flow...

Security readout for executives and security teams

This is an old PHP core vulnerability fixed in PHP 5.2.4. The public CVE text says a memory_limit violation can interrupt zend_alter_ini_entry in a way PHP did not handle correctly. The business risk is hard to rank because the impact and attack vectors are listed as unknown. Exposure is most likely limited to legacy systems still running PHP versions before 5.2.4 or distribution packages that included the vulnerable PHP code. Modern supported PHP branches should not be assumed affected from these sources. Prioritize this during legacy PHP cleanup. It does not have enough sourced detail to justify emergency response alone, but any PHP version this old is unsupported and likely carries broader accumulated security risk. Mitigation focus: Identify any systems running PHP before 5.2.4.; Upgrade affected PHP installations to 5.2.4 or a supported later branch.; Use distribution advisories for Debian, Gentoo, Trustix, or vendor-packaged PHP..

Prepared

Jun 29, 2026, 03:52 UTC (UTC+00:00)

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