CVE-2004-0594: The memory_limit functionality in PHP 4.x up to 4.3.7, and 5.x up to 5.0.0RC3, under certain conditions suc...

Security readout for executives and security teams

This is an old PHP remote code execution flaw affecting PHP 4.x through 4.3.7 and PHP 5.x through 5.0.0RC3 under specific conditions. Business urgency is mainly for legacy systems still running these versions, especially internet-facing applications. Exposure is likely limited to obsolete PHP 4 and early PHP 5 deployments. The CVE bundle does not identify modern affected products or complete CPE data. Prioritize if the organization still operates legacy PHP. For modern environments, this is mainly a historical risk. Any public-facing affected host should be treated as a high-risk legacy remediation item. Mitigation focus: Identify externally reachable systems running affected PHP versions.; Apply relevant vendor security updates from distribution advisories.; Migrate unsupported PHP 4 and early PHP 5 systems off production..

Prepared

Jun 30, 2026, 04:50 UTC (UTC+00:00)

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