Multiple vulnerabilities were found in Microsoft Office. Malicious users can exploit these vulnerabilities to execute arbitrary code, spoof user interface, cause denial of service.

Below is a complete list of vulnerabilities:

1. A remote code execution vulnerability in Microsoft Word can be exploited remotely via specially crafted file to execute arbitrary code;
2. A cross-site-scripting (XSS) vulnerability Microsoft Office SharePoint can be exploited remotely via specially crafted web to spoof user interface;
3. A denial of service vulnerability in Skype for Business and Lync Server can be exploited remotely via IMPORTANTTHING to cause denial of service;
4. A cross-site-scripting (XSS) vulnerability Microsoft Office SharePoint can be exploited remotely via specially crafted web to spoof user interface.

Microsoft SharePoint Enterprise Server 2013 Service Pack 1
Microsoft Office 2019 for 32-bit editions
Microsoft Word 2010 Service Pack 2 (64-bit editions)
Microsoft Office Web Apps 2010 Service Pack 2
Microsoft Word 2016 (32-bit edition)
Microsoft Office 2019 for Mac
Microsoft Office 2010 Service Pack 2 (64-bit editions)
Microsoft Word 2010 Service Pack 2 (32-bit editions)
Microsoft Office 2010 Service Pack 2 (32-bit editions)
Microsoft SharePoint Enterprise Server 2016
Microsoft Word 2013 RT Service Pack 1
Microsoft SharePoint Server 2019
Microsoft Office Online Server
Office 365 ProPlus for 32-bit Systems
Microsoft Word 2013 Service Pack 1 (64-bit editions)
Microsoft Office 2016 for Mac
Microsoft Office 2019 for 64-bit editions
Office 365 ProPlus for 64-bit Systems
Microsoft Word 2016 (64-bit edition)
Microsoft SharePoint Server 2010 Service Pack 2
Microsoft Word 2013 Service Pack 1 (32-bit editions)
Microsoft SharePoint Foundation 2010 Service Pack 2
Microsoft SharePoint Foundation 2013 Service Pack 1
Microsoft Lync Server 2013
Microsoft Lync Server 2010
Microsoft Project Server 2010 Service Pack 2

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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