Microsoft Office 2007 SP3, 2010 SP2, and 2013 SP1 allows remote attackers to execute arbitrary code via a crafted document, aka "Microsoft Office Memory Corruption Vulnerability."
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2015-1642
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2015/ms15-081