Microsoft Excel 2003 SP3, 2007 SP2 and SP3, and 2010 SP1; Excel Viewer; and Office Compatibility Pack SP2 and SP3 allow remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted spreadsheet, aka "Excel Memory Corruption Vulnerability."
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A15927
https://exchange.xforce.ibmcloud.com/vulnerabilities/78073
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2012/ms12-076
http://www.us-cert.gov/cas/techalerts/TA12-318A.html