This security update resolves vulnerabilities in Microsoft Office server and productivity software. The vulnerabilities could allow remote code execution if an authenticated attacker sends specially crafted page content to a SharePoint server. An attacker who successfully exploited these vulnerabilities could run arbitrary code in the security context of the W3WP service account on the target SharePoint site.
The security update addresses the vulnerabilities by correcting how SharePoint Server sanitizes specially crafted page content. For more information about the vulnerabilities, see the "More Information" section.
- Home users:
Skip the details: Download the updates for your home computer or laptop from the Microsoft Update website now:
- IT professionals:
How to obtain help and support for this security updateHelp installing updates:
Support for Microsoft Update
Security solutions for IT professionals:
TechNet Security Troubleshooting and Support
Help protect your Windows-based computer from viruses and malware:
Virus Solution and Security Center
Local support according to your country:
Restart informationYou 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 will require a restart. If this behavior occurs, a message is displayed that advises you to restart the computer.
To help reduce the possibility that a restart will be required, stop all affected services and close all applications that may use the affected files before you install this security update.
See Why you may be prompted to restart your computer after you install a security update on a Windows-based computer for more information.