Multiple vulnerabilities were found in Microsoft Office. Malicious users can exploit these vulnerabilities to spoof user interface, gain privileges, execute arbitrary code.

Below is a complete list of vulnerabilities:

1. A cross-site-scripting (XSS) vulnerability Microsoft Office SharePoint can be exploited remotely via specially crafted web to spoof user interface.
2. An elevation of privilege vulnerability in Microsoft SharePoint can be exploited remotely via specially crafted web to gain privileges.
3. A spoofing vulnerability in Microsoft SharePoint can be exploited remotely via specially crafted web to spoof user interface.
4. A remote code execution vulnerability in Microsoft Excel can be exploited remotely via specially crafted file to execute arbitrary code.
5. An elevation of privilege vulnerability in Microsoft SharePoint can be exploited remotely via specially crafted request to gain privileges.

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

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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