Microsoft Word 2007 SP3 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted Office document, aka "OneTableDocumentStream Remote Code Execution Vulnerability."
https://www.exploit-db.com/exploits/37966/
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2015/ms15-012
http://www.securitytracker.com/id/1031720