Microsoft Visio 2003 SP3, 2007 SP2, and 2010 Gold and SP1 does not properly validate objects in memory during Visio file parsing, which allows remote attackers to execute arbitrary code via a crafted file, aka "pStream Release RCE Vulnerability."
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12852
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-060