Microsoft Office 2007 SP3, 2010 SP2, 2013 SP1, 2013 RT SP1, and 2016, Word 2016 for Mac, and Word Viewer allow remote attackers to execute arbitrary code via a crafted file, aka "Microsoft Office Memory Corruption Vulnerability."
https://www.exploit-db.com/exploits/40224/
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2016/ms16-099