Microsoft Excel 2002 SP3 and 2003 SP3, Office 2004 and 2008 for Mac, and Open XML File Format Converter for Mac do not properly validate record information, which allows remote attackers to execute arbitrary code via a crafted Excel document, aka "Out Of Bounds Array Vulnerability."
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7209
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2010/ms10-080