This security update resolves vulnerabilities in Microsoft Office server and productivity software that could allow remote code execution if an authenticated attacker sends specially crafted page content to a target SharePoint server.
Microsoft has released security bulletin MS14-022. To learn more about this security bulletin:
After you install this security update on all SharePoint servers, you have to run the PSconfig tool to complete the installation process. For more information about how to use the PSconfig tool, go to the following Microsoft TechNet webpage:
There are no prerequisites for installing this security update.
You may have to restart the computer after you install this security update.
In some cases, this update does not require a restart. If the required files are being used, this update does require a restart. If this behavior occurs, a message is displayed that advises you to restart the computer.
To reduce the possibility that a restart will be required, stop all affected services and exit all applications that may use the affected files before you install this security update.