Microsoft Excel 2007 SP3, Excel Viewer, and Office Compatibility Pack SP3 allow remote attackers to execute arbitrary code via a crafted Office document, aka "Microsoft Excel Memory Corruption Vulnerability."
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A18926
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2013/ms13-085