Microsoft Word 2003 SP3 and 2007 SP2 and SP3, Office 2008 and 2011 for Mac, and Office Compatibility Pack SP2 and SP3 allow remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via crafted RTF data, aka "RTF Mismatch Vulnerability."
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A15327
https://exchange.xforce.ibmcloud.com/vulnerabilities/75122
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2012/ms12-029
http://www.us-cert.gov/cas/techalerts/TA12-129A.html
http://www.securitytracker.com/id?1027035