Unspecified vulnerability in Microsoft Excel 2000 through 2004 allows user-assisted attackers to execute arbitrary code via a .xls file with a crafted FNGROUPCOUNT value.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A243
https://exchange.xforce.ibmcloud.com/vulnerabilities/27464
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2006/ms06-037
http://www.vupen.com/english/advisories/2006/2755
http://www.securityfocus.com/bid/18890
http://securitytracker.com/id?1016472
http://lists.grok.org.uk/pipermail/full-disclosure/2006-July/047837.html