CVE-2006-7227: Integer overflow in Perl-Compatible Regular Expression (PCRE) library before 6.7 allows context-dependent a...

Security readout for executives and security teams

PCRE versions before 6.7 can mishandle very large regular-expression metadata and overwrite memory. Software that lets users submit or process untrusted regex patterns through an affected PCRE build could face arbitrary code execution. Business urgency depends on whether old PCRE is still present in supported systems, appliances, or statically bundled applications. Most direct exposure is legacy systems, embedded products, appliances, or applications bundling PCRE before 6.7. Exposure is higher where untrusted users can influence regular expressions rather than only input matched by trusted patterns. Treat as high priority for legacy estate review, not as an emergency unless affected PCRE is reachable through untrusted regex processing. The main risk is old dependency exposure hidden in appliances or bundled software. Mitigation focus: Inventory PCRE library versions and statically bundled copies.; Upgrade affected PCRE builds to 6.7 or vendor-supported fixed packages.; Check relevant vendor advisories for distribution-specific package names and fixed versions..

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.