CVE-2007-3030: Microsoft Excel

High severity, CVSS 7.6. EPSS: 25% chance of exploitation in the next 30 days.

Microsoft Excel 2000 SP3, 2002 SP3, 2003 SP2, and 2003 Viewer allows user-assisted remote attackers to execute arbitrary code via a malformed Excel file involving the "denoting [of] the start of a Workspace designation", which results in memory corruption, aka the "Workbook Memory Corruption Vulnerability".

Affected products

• Microsoft Excel: version 2000 only; version 2002 only; version 2003 only; version 2004 only; version 2007 only
• Microsoft Excel Viewer: version 2003 only

Published 2007-07-10. Last modified 2026-06-16.