CVE-2011-1989: Input Validation
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."
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2011-1989?
CVE-2011-1989 has a severity rating of critical, as it allows remote code execution.
How do I fix CVE-2011-1989?
To fix CVE-2011-1989, apply the security updates provided by Microsoft for the affected versions of Office and Excel.
What systems are affected by CVE-2011-1989?
CVE-2011-1989 affects Microsoft Excel 2003, 2007, 2010, as well as various versions of Microsoft Office and SharePoint.
What are the potential impacts of CVE-2011-1989?
The potential impacts of CVE-2011-1989 include unauthorized access to system resources and execution of arbitrary code.
Is there a workaround for CVE-2011-1989?
There are no official workarounds for CVE-2011-1989, so updating to a patched version is recommended.