KLA20157
Multiple vulnerabilities in Microsoft Office

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

Below is a complete list of vulnerabilities:

1. A remote code execution vulnerability in Microsoft Office Visio can be exploited remotely to execute arbitrary code.
2. A remote code execution vulnerability in Microsoft SharePoint Server can be exploited remotely to execute arbitrary code.
3. A remote code execution vulnerability in Microsoft Office can be exploited remotely to execute arbitrary code.
4. A security feature bypass vulnerability in Microsoft SharePoint Server can be exploited remotely to bypass security restrictions.
5. An information disclosure vulnerability in Microsoft Office Visio can be exploited remotely to obtain sensitive information.

The following public exploits exists for this vulnerability:

https://github.com/ohnonoyesyes/CVE-2023-21742

Microsoft Office LTSC 2021 for 32-bit editions
Microsoft Office LTSC 2021 for 64-bit editions
Microsoft SharePoint Server Subscription Edition
Microsoft SharePoint Enterprise Server 2013 Service Pack 1
Microsoft Visio 2013 Service Pack 1 (32-bit editions)
Microsoft Office LTSC for Mac 2021
Microsoft Visio 2016 (32-bit edition)
Microsoft Visio 2016 (64-bit edition)
Microsoft Office 2019 for 64-bit editions
Microsoft Office 2019 for 32-bit editions
Microsoft SharePoint Foundation 2013 Service Pack 1
Microsoft SharePoint Server 2019
Microsoft 365 Apps for Enterprise for 64-bit Systems
Microsoft Visio 2013 Service Pack 1 (64-bit editions)
Microsoft Office 2019 for Mac
Microsoft 365 Apps for Enterprise for 32-bit Systems
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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