CVE-2011-1989 Code injection in n/a
Remote attackers can execute arbitrary code by tricking users into opening a crafted spreadsheet with malicious conditional formatting expressions.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2011-1989?
CVE-2011-1989 is a critical code injection vulnerability in Microsoft Excel, published on 15 Sep 2011. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official 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."
Weakness: CWE-20
Which versions are affected by CVE-2011-1989?
It affects 7 products.
Products include Microsoft Excel, Microsoft Excel Viewer, Microsoft Excel Web App, Microsoft Office, Microsoft Office Compatibility Pack, Microsoft Open Xml File Format Converter and 1 more.
How do I fix CVE-2011-1989?
No fix has been published for CVE-2011-1989 yet. Limit exposure of the affected software until one is available.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2011-1989 being exploited?
There is no known exploitation of CVE-2011-1989 in the wild and no public exploit code.
Other vulnerabilities in Microsoft Excel
Sources
Also known as GHSA-vc7q-73x4-cqqg.