A remote code execution vulnerability exists in Excel Services Microsoft Excel 2007 Service Pack 3 Microsoft Excel 2010 Service Pack 2 Microsoft Excel 2013 Service Pack 1 Microsoft Excel 2013 RT Service Pack 1 Microsoft Excel 2016 Microsoft Office Web Apps 2013 Microsoft Office Compatibility Pack Service Pack 3 Microsoft Excel Web App 2013 Service Pack 1 Microsoft Excel Viewer 2007 Service Pack 3 and Office Online Server when they fail to properly handle objects in memory aka \Microsoft Office Memory Corruption Vulnerability\. This CVE ID is unique from CVE-2017-8630 CVE-2017-8632 and CVE-2017-8744.