Microsoft Excel 2007 SP3, Microsoft Outlook 2010 SP2, Microsoft Outlook 2013 SP1, and Microsoft Outlook 2016 allow remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted document, aka "Microsoft Office Memory Corruption Vulnerability."
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-0106