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Article ID: 2817421 - Last Review: June 11, 2013 - Revision: 1.0

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Resolves a vulnerability in Microsoft Office that could allow remote code execution if you open a specially crafted Office document. Or, remote code execution could occur if you preview or open a specially crafted email message in Microsoft Outlook while you are using Microsoft Word as the email editor.


Microsoft has released security bulletin MS13-051. 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

Known issues with this security update

Microsoft Update or Windows Update may offer this update  ( ) even though you do not have a Microsoft Office 2003 application installed.

Prerequisites to apply this security update

To apply this security update, you must have Service Pack 3 (SP3) for Microsoft Office 2003  ( ) installed on the computer.

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.

Check out Why you may be prompted to restart your computer after you install a security update on a Windows-based computer  ( ) for more information.

Removal information

Note We do not recommend that you remove any security update.

To remove this security update, use the Add or Remove Programs item or use the Programs and Features item in Control Panel.

Note When you remove this security update, you may be prompted to insert the disc that contains Microsoft Office 2003. Additionally, you may not have the option to uninstall this security update from the Add or Remove Programs item or the Programs and Features item in Control Panel. There are several possible causes for this issue.

Check out Information about the ability to uninstall Office updates  ( ) for more information.

Security update replacement information

This security update replaces MS11-073: Description of the security update for Office 2003: September 13, 2011  ( ) .

File information

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The English version of this security update has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel.
For all supported x86-based versions of systems
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File nameFile versionFile sizeDateTime
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Applies to
kbsecvulnerability kbsecurity kbsecbulletin kbfix kbexpertiseinter kbbug atdownload KB2817421
Additional support options
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