CVE-2007-0031: Microsoft Excel

High severity, CVSS 9.3. EPSS: 42.2% chance of exploitation in the next 30 days.

Heap-based buffer overflow in Microsoft Excel 2000 SP3, 2002 SP3, 2003 SP2, 2004 for Mac, and v.X for Mac allows user-assisted remote attackers to execute arbitrary code via a BIFF8 spreadsheet with a PALETTE record that contains a large number of entries.

Affected products

• Microsoft Excel: version 2000 only; version 2002 only; version 2003 only
• Microsoft Excel Viewer: version 2003 only
• Microsoft Office: version 2000 only; version xp only; version 2003 only; version 2004 only; version v.x only
• Microsoft Works: version 2004 only; version 2005 only

Published 2007-01-09. Last modified 2026-06-16.