Microsoft Publisher 2003 SP3, and 2007 SP2 and SP3, does not properly manage memory allocations for function pointers, which allows user-assisted remote attackers to execute arbitrary code via a crafted Publisher file, aka "Publisher Function Pointer Overwrite Vulnerability."
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A14816
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-091