Microsoft Project 2000 SR1 and 2002 SP1, and Office Project 2003 SP3, does not properly handle memory allocation for Project files, which allows remote attackers to execute arbitrary code via a malformed file, aka "Project Memory Validation Vulnerability."
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6298
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-074