CVE-2007-6039: PHP 5.2.5 and earlier allows context-dependent attackers to cause a denial of service (application crash) v...

Security readout for executives and security teams

This is an old PHP denial-of-service issue. In PHP 5.2.5 and earlier, specially long values passed into certain translation or stream-wrapper functions could crash the application. Business urgency is mainly for legacy systems still running very old PHP and exposing affected code paths to untrusted input. Exposure is most likely in legacy PHP applications running PHP 5.2.5 or earlier, especially where public requests can influence arguments to gettext, dgettext, dcgettext, ngettext, dngettext, or stream_wrapper_register. Modern PHP deployments are unlikely to be exposed unless they retain these obsolete runtimes. Treat this as a legacy-risk cleanup item unless an internet-facing service still runs PHP 5.2.5 or earlier. If such systems exist, prioritize upgrade planning because the runtime is obsolete and the issue can affect service availability. Mitigation focus: Inventory PHP runtimes and identify any PHP 5.2.5 or earlier deployments.; Check PHP or distribution vendor guidance for the appropriate supported upgrade path.; Prioritize replacing unsupported PHP versions in internet-facing applications..

Prepared

Jun 28, 2026, 19:45 UTC (UTC+00:00)

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