• Microsoft Excel 2000 Service Pack 3 (Microsoft Office 2000 Service Pack 3)
• Microsoft Excel 2002 Service Pack 3 (Microsoft Office XP Service Pack 3)
• Microsoft Excel 2003 Service Pack 3 (Microsoft Office 2003 Service Pack 3)
• Microsoft Office 2004 for Mac
• Microsoft Office 2008 for Mac
• Microsoft Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats
• Microsoft Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats Service Pack 1
• Microsoft Office Excel 2007 (2007 Microsoft Office System)
• Microsoft Office Excel 2007 Service Pack 1 (2007 Microsoft Office System Service Pack 1)
• Microsoft Office Excel Viewer
• Microsoft Office Excel Viewer 2003
• Microsoft Office Excel Viewer 2003 Service Pack 3
• Open XML File Format Converter for Mac

This security update resolves three privately reported vulnerabilities in Microsoft Office Excel that could allow remote code execution if a user opens a specially crafted Excel file.

A remote malicious user who successfully exploits these vulnerabilities could take complete control of an affected system. The said malicious user could then install programs; view, change, or delete data; or create new accounts with full user rights.

Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights.