This security update resolves vulnerabilities in Microsoft Office that could allow remote code execution if an attacker convinces a user to open or preview a specially crafted Microsoft Word file in an affected version of Office.
Improvements and fixesThis update also contains a fix for the following nonsecurity issue:
- Assume that you open a Microsoft Excel workbook that contains many hidden rows or rows that have a customized height in Excel Web App. When you copy and paste the cells to another worksheet, the hidden rows may become unhidden, and the row height of those that have a customized height may revert to the default height.
Microsoft has released security bulletin MS15-012. Learn more about how to obtain the fixes that are included in this security bulletin:
- For individual, small business, and organizational users, use the Windows automatic updating feature to install the fixes from Microsoft Update. To do this, see Get security updates automatically on the Microsoft Safety and Security Center website.
- For IT professionals, see Microsoft Security Bulletin MS15-012 on the Security TechCenter website.
How to obtain help and support for this security updateHelp installing updates: Support for Microsoft Update
Security solutions for IT professionals: TechNet Security support and troubleshooting
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 updateAfter you install this security update on all Microsoft SharePoint servers and SharePoint services, you have to run the PSconfig tool to complete the installation.
Download informationThis update is available for download from the Microsoft Download Center.
Nonsecurity fixes that are included in this security updateThis security update resolves the following nonsecurity issue:
- When you open a malicious DOC file by using Microsoft Word 2010 in Windows Server 2003 or Windows 7, Word 2010 may crash.
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.
Learn about why you may be prompted to restart your computer after you install a security update on a Windows-based computer.