Buffer overflow in the CGM image converter in the graphics filters in Microsoft Office XP SP3, Office 2003 SP3, and Office Converter Pack allows remote attackers to execute arbitrary code via a crafted CGM image in an Office document, aka "CGM Image Converter Buffer Overrun Vulnerability."
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12249
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2010/ms10-105