Multiple vulnerabilities were found in Microsoft Office. Malicious users can exploit these vulnerabilities to obtain sensitive information, bypass security restrictions, spoof user interface, execute arbitrary code.

Below is a complete list of vulnerabilities:

1. An information disclosure vulnerability in Microsoft SharePoint can be exploited remotely via specially crafted file to obtain sensitive information.
2. A security feature bypass vulnerability in Microsoft Office ClickToRun can be exploited remotely via specially crafted file to bypass security restrictions.
3. A spoofing vulnerability in Microsoft Office Online can be exploited remotely via specially crafted request to spoof user interface.
4. An information disclosure vulnerability in Microsoft Excel can be exploited remotely to obtain sensitive information.
5. A remote code execution vulnerability in Microsoft Excel can be exploited remotely via specially crafted file to execute arbitrary code.
6. Unspecified Microsoft Office can be exploited remotely via specially crafted file to bypass security restrictions.
7. An information disclosure vulnerability in Microsoft Office can be exploited remotely via specially crafted application to obtain sensitive information.
8. A security feature bypass vulnerability in Microsoft Office can be exploited remotely via specially crafted file to bypass security restrictions.

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

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

4484142
4484148
4484159
4484119
4484143
4484164
4484160
4484113
4484149
4484151
4484144
4484127
4484141
4484158
4484157
4484165
4484152