MS15-070: Description of the security update for Excel 2013: July 14, 2015

This security update resolves vulnerabilities in Microsoft Office that could allow remote code execution if a user opens a specially crafted Microsoft Office file. To learn more about these vulnerabilities, see Microsoft Security Bulletin MS15-070.

Note To apply this security update, you must have the release version of Service Pack 1 for Office 2013 installed on the computer.

For a complete list of affected versions of Microsoft Office software, see KB3072620 .

Improvements and fixes

This update also contains fixes for the following nonsecurity issues:

• When you run the VBA code to obtain the ReadOnly property of a workbook on a SharePoint document library in Excel 2013, the result is false. This issue occurs if you open the workbook from the Recent Workbooks list, and the Require documents to be checked out before they can be edited? value is set to Yes for the document library.
  
• Assume that you open two or more Microsoft Excel OLE objects (for example, Microsoft Excel worksheet objects) in a document in an Office 2013 application. After you change and save one of the OLE objects, the user interfaces on the ribbon may not work.
  
• Excel 2013 may crash intermittently.
  
• DRM can be unlocked unexpectedly if a user has "Save" rights.