Microsoft Office Visio 2002 SP2, 2003 SP3, and 2007 SP1 does not properly perform memory copy operations for object data, which allows remote attackers to execute arbitrary code via a crafted Visio document, aka "Memory Corruption Vulnerability."
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6172
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-005