Integer overflow in the REPT function in Microsoft Excel 2000 SP3, 2002 SP3, 2003 SP2 and SP3, and 2007 Gold and SP1; Office Excel Viewer 2003 SP3; Office Excel Viewer; Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats Gold and SP1; Office SharePoint Server 2007 Gold and SP1; Office 2004 and 2008 for Mac; and Open XML File Format Converter for Mac allows remote attackers to execute arbitrary code via an Excel file containing a formula within a cell, aka "Formula Parsing Vulnerability."
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6102
https://exchange.xforce.ibmcloud.com/vulnerabilities/45581
https://exchange.xforce.ibmcloud.com/vulnerabilities/45580
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2008/ms08-057
http://www.vupen.com/english/advisories/2008/2808
http://www.us-cert.gov/cas/techalerts/TA08-288A.html
http://www.securitytracker.com/id?1021044
http://www.securityfocus.com/bid/31706