CVE-2015-6040
Microsoft Excel 2007 SP3, Excel 2010 SP2, Excel for Mac 2011, Excel 2016 for Mac, Office Compatibility Pack SP3, and Excel Viewer allow remote attackers to execute arbitrary code via a crafted Office document, aka "Microsoft Office Memory Corruption Vulnerability."
Date published : 2015-12-09
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2015/ms15-131