CVE-2011-1990 Memory corruption in n/a
Remote attackers can execute arbitrary code by tricking users into opening a crafted spreadsheet in Microsoft Excel due to improper array index validation.
- 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-2011-1990?
CVE-2011-1990 is a critical memory corruption 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 2007 SP2; Excel in Office 2007 SP2; Excel Viewer SP2; Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats SP2; and Excel Services on Office SharePoint Server 2007 SP2 do not properly validate the sign of an unspecified array index, which allows remote attackers to execute arbitrary code via a crafted spreadsheet, aka "Excel Out of Bounds Array Indexing Vulnerability."
Weakness: CWE-119
Which versions are affected by CVE-2011-1990?
It affects 5 products.
Products include Microsoft Excel, Microsoft Excel Viewer, Microsoft Office, Microsoft Office Compatibility Pack, Microsoft Sharepoint Server.
How do I fix CVE-2011-1990?
No fix has been published for CVE-2011-1990 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2011-1990 being exploited?
There is no known exploitation of CVE-2011-1990 in the wild and no public exploit code.
Other vulnerabilities in Microsoft Excel
Sources
Also known as GHSA-f9f3-g4p4-q8f6.