Multiple serious vulnerabilities have been found in Microsoft Office. Malicious users can exploit these vulnerabilities to bypass security restrictions or execute arbitrary code.

Below is a complete list of vulnerabilities

1. Improper memory objects handling can be exploited remotely via a specially designed file to execute arbitrary code;
2. Lack of Access Control Policy enforcement can be exploited remotely via a specially designed web content to bypass security restrictions;
3. An unknown vulnerability can be exploited remotely via a specially designed web content to bypass Address Space Layout Randomization security feature.

Technical details

In some cases vulnerability (1) can be triggered via Preview Pane.

Vulnerability (2) related to SharePoint

Microsoft Sharepoint Foundation 2013 Service Pack 1
Microsoft Office 2007 Service Pack 3
Microsoft Office 2010 Service Pack 2
Microsoft Office 2013 Service Pack 1
Microsoft Office 2013 RT Service Pack 1
Microsoft Office 2016
Microsoft Excel, Powerpoint and Word for Mac 2011
Microsoft Excel, Powerpoint and Word for Mac 2016
Microsoft Office Compatibility Pack Service Pack 3
Microsoft Excel and Word Viewers
Microsoft Sharepoint Server 2013 Service Pack 1

Install necessary updates from the KB section, that are listed in your Windows Update (Windows Update usually can be accessed from the Control Panel)

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