How severe is CVE-2011-1989?

This vulnerability has a severity rating of HIGH with a CVSS score of 9.3 out of 10.

What type of vulnerability is CVE-2011-1989?

This is classified as CWE-20, which is a common weakness in software security.

CVE-2011-1989 - HIGH Severity | CVSS 9.3

Vulnerability Description

Microsoft Excel 2003 SP3 and 2007 SP2; Excel in Office 2007 SP2; Excel 2010 Gold and SP1; Excel in Office 2010 Gold and SP1; Office 2004, 2008, and 2011 for Mac; Open XML File Format Converter for Mac; Excel Viewer SP2; Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats SP2; Excel Services on Office SharePoint Server 2007 SP2; Excel Services on Office SharePoint Server 2010 Gold and SP1; and Excel Web App 2010 Gold and SP1 do not properly parse conditional expressions associated with formatting requirements, which allows remote attackers to execute arbitrary code via a crafted spreadsheet, aka "Excel Conditional Expression Parsing Vulnerability."

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