CVE-2005-0975: Integer signedness error in the parse_machfile function in the mach-o loader (mach_loader.c) for the Darwin...

Security readout for executives and security teams

This is a legacy Apple Darwin Kernel issue affecting Mac OS X versions before 10.3.9. A local user could trigger excessive CPU consumption with a malformed Mach-O file header. The source bundle describes denial of service only, not data theft, privilege escalation, or remote compromise. Exposure is likely limited to obsolete Mac OS X or Darwin systems that still allow local user access or execute untrusted local binaries. Modern macOS versions are not identified in the source bundle. Treat this as a legacy hygiene issue unless affected hosts still exist in production or shared environments. The main business risk is availability disruption on old Apple systems, not confirmed data compromise. Mitigation focus: Upgrade affected Mac OS X systems to 10.3.9 or later where applicable.; Retire or isolate unsupported legacy Mac OS X hosts.; Restrict local shell or desktop access on any remaining affected systems..

Prepared

Jun 29, 2026, 22:16 UTC (UTC+00:00)

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