CVE-2011-0977: Microsoft Excel

High severity, CVSS 9.3. EPSS: 32.2% chance of exploitation in the next 30 days.

Use-after-free vulnerability in Microsoft Office XP SP3, Office 2003 SP3, Office 2007 SP2, Office 2004 and 2008 for Mac, and Open XML File Format Converter for Mac allows remote attackers to execute arbitrary code via malformed shape data in the Office drawing file format, aka "Microsoft Office Graphic Object Dereferencing Vulnerability."

Affected products

• Microsoft Excel: version 2007 only

Published 2011-02-10. Last modified 2026-06-16.