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Article ID: 2817305 - Last Review: November 21, 2013 - Revision: 5.2

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This security update resolves vulnerabilities in Microsoft Office Server software that could allow remote code execution in the context of the W3WP service account.


Microsoft has released security bulletin MS13-067. To view the complete security bulletin, go to one of the following Microsoft websites.

How to obtain help and support for this security update

Help installing updates: Support for Microsoft Update (

Security solutions for IT professionals: TechNet security troubleshooting and support (

Help protect your computer that is running Windows from viruses and malware: Virus Solution and Security Center (

Local support according to your country: International support (

More information about this security update

To install this security update, follow the steps on the following Microsoft TechNet website: 
Apply software updates to Office Web Apps Server (

Restart information

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 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.

For more information, see Why you may be prompted to restart your computer after you install a security update on a Windows-based computer  ( ) .

Removal information

This security update cannot be removed.

Security update replacement information

This security update does not replace any previous security update.

File information

For a list of the files that are provided in this update 2817305, see the following:
File attributes tables for security update 2817305.csv ( attributes tables for security update 2817305.csv)

Applies to
  • Microsoft Office Web Apps Server 2013
kbsecvulnerability kbsecurity kbsecbulletin kbfix kbexpertiseinter kbbug atdownload KB2817305
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