Microsoft Office Web Apps Remote Code Execution vulnerability (2904244)

Summary
This host is missing an important security update according to Microsoft Bulletin MS13-100.
Impact
Successful exploitation will allow attackers to execute arbitrary code with the privileges of the W3WP service account. Impact Level: Application
Solution
Run Windows Update and update the listed hotfixes or download and update mentioned hotfixes in the advisory from the below link, http://technet.microsoft.com/en-us/security/bulletin/ms13-100
Insight
Flaws is due to some input sanitisation errors related to SharePoint content
Affected
Microsoft Office Web Apps 2013
Detection
Get the vulnerable file version and check appropriate patch is applied or not.
References