CVE-2010-3233: Microsoft Excel

High severity, CVSS 9.3. EPSS: 21% chance of exploitation in the next 30 days.

Microsoft Excel 2002 SP3 and 2003 SP3 does not properly validate record information, which allows remote attackers to execute arbitrary code via a crafted .wk3 (aka Lotus 1-2-3 workbook) file, aka "Lotus 1-2-3 Workbook Parsing Vulnerability."

Affected products

• Microsoft Excel: version 2002 only; version 2003 only

Published 2010-10-13. Last modified 2026-06-16.