Multiple vulnerabilities were found in Microsoft Extended Security Updates. Malicious users can exploit these vulnerabilities to gain privileges, execute arbitrary code, obtain sensitive information, spoof user interface.

Below is a complete list of vulnerabilities:

1. An elevation of privilege vulnerability in Windows Installer can be exploited remotely to gain privileges.
2. A memory corruption vulnerability in Scripting Engine can be exploited remotely via specially crafted website to execute arbitrary code.
3. An information disclosure vulnerability in Windows Imaging Component can be exploited remotely via specially crafted website to obtain sensitive information.
4. An elevation of privilege vulnerability in Win32k can be exploited remotely via specially crafted application to gain privileges.
5. An information disclosure vulnerability in Windows GDI can be exploited remotely via specially crafted application to obtain sensitive information.
6. An information disclosure vulnerability in Windows Network Connections Service can be exploited remotely via specially crafted application to obtain sensitive information.
7. An elevation of privilege vulnerability in Windows CSC Service can be exploited remotely via specially crafted application to gain privileges.
8. An elevation of privilege vulnerability in Windows Hard Link can be exploited remotely via specially crafted application to gain privileges.
9. An elevation of privilege vulnerability in Windows UPnP Service can be exploited remotely via specially crafted script to gain privileges.
10. An elevation of privilege vulnerability in Windows User Profile Service can be exploited remotely via specially crafted application to gain privileges.
11. An elevation of privilege vulnerability in Windows Background Intelligent Transfer Service can be exploited remotely via specially crafted application to gain privileges.
12. A remote code execution vulnerability in LNK can be exploited remotely to execute arbitrary code.
13. An elevation of privilege vulnerability in Windows Error Reporting can be exploited remotely via specially crafted application to gain privileges.
14. An elevation of privilege vulnerability in Windows Network Connections Service can be exploited remotely via specially crafted application to gain privileges.
15. An elevation of privilege vulnerability in Windows Language Pack Installer can be exploited remotely via specially crafted application to gain privileges.
16. A remote code execution vulnerability in VBScript can be exploited remotely via specially crafted website to execute arbitrary code.
17. An elevation of privilege vulnerability in Windows ActiveX Installer Service can be exploited remotely via specially crafted application to gain privileges.
18. An elevation of privilege vulnerability in Connected User Experiences and Telemetry Service can be exploited remotely via specially crafted application to gain privileges.
19. An information disclosure vulnerability in Windows Graphics Component can be exploited remotely via specially crafted document to obtain sensitive information.
20. A remote code execution vulnerability in GDI+ can be exploited remotely via specially crafted website to execute arbitrary code.
21. An information disclosure vulnerability in Windows GDI can be exploited remotely via specially crafted document to obtain sensitive information.
22. A tampering vulnerability in Microsoft IIS Server can be exploited remotely to spoof user interface.
23. An elevation of privilege vulnerability in Windows Installer can be exploited remotely via specially crafted application to gain privileges.
24. An elevation of privilege vulnerability in Windows Graphics Component can be exploited remotely via specially crafted application to gain privileges.

Malware exists for this vulnerability. Usually such malware is classified as Exploit. More details.

Windows 10 Version 1803 for 32-bit Systems
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation)
Windows RT 8.1
Windows Server 2019 (Server Core installation)
Windows 10 Version 1709 for 32-bit Systems
Windows Server 2016 (Server Core installation)
Windows 10 Version 1809 for 32-bit Systems
Windows 10 Version 1803 for x64-based Systems
Windows 10 Version 1909 for ARM64-based Systems
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation)
Windows 10 for x64-based Systems
Windows 10 Version 1903 for ARM64-based Systems
Windows 7 for x64-based Systems Service Pack 1
Internet Explorer 11
Windows 10 Version 1909 for 32-bit Systems
Windows Server, version 1903 (Server Core installation)
Windows Server 2012 R2 (Server Core installation)
Windows 10 Version 1709 for ARM64-based Systems
Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1
Windows 10 Version 1909 for x64-based Systems
Windows Server 2008 for 32-bit Systems Service Pack 2
Windows 8.1 for x64-based systems
Windows Server 2008 for Itanium-Based Systems Service Pack 2
Windows Server, version 1909 (Server Core installation)
Windows 10 Version 1903 for x64-based Systems
Windows Server 2012
Windows 10 Version 1607 for 32-bit Systems
Windows 10 Version 1607 for x64-based Systems
Windows 8.1 for 32-bit systems
Windows 10 Version 1809 for ARM64-based Systems
Windows Server 2012 (Server Core installation)
Windows 10 for 32-bit Systems
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)
Windows 10 Version 1903 for 32-bit Systems
Windows 10 Version 1709 for x64-based Systems
Internet Explorer 9
Windows Server, version 1803 (Server Core Installation)
Windows 10 Version 1809 for x64-based Systems
Windows Server 2008 R2 for x64-based Systems Service Pack 1
Windows Server 2016
Windows Server 2008 for x64-based Systems Service Pack 2
Windows 7 for 32-bit Systems Service Pack 1
Windows Server 2012 R2
Windows Server 2019
Windows 10 Version 1803 for ARM64-based Systems

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

CVE-2020-0814
CVE-2020-0832
CVE-2020-0853
CVE-2020-0877
CVE-2020-0874
CVE-2020-0871
CVE-2020-0769
CVE-2020-0849
CVE-2020-0879
CVE-2020-0788
CVE-2020-0781
CVE-2020-0783
CVE-2020-0785
CVE-2020-0787
CVE-2020-0684
CVE-2020-0806
CVE-2020-0804
CVE-2020-0803
CVE-2020-0802
CVE-2020-0822
CVE-2020-0843
CVE-2020-0842
CVE-2020-0847
CVE-2020-0860
CVE-2020-0845
CVE-2020-0844
CVE-2020-0887
CVE-2020-0885
CVE-2020-0883
CVE-2020-0882
CVE-2020-0881
CVE-2020-0880
CVE-2020-0774
CVE-2020-0645
CVE-2020-0771
CVE-2020-0770
CVE-2020-0773
CVE-2020-0772
CVE-2020-0779
CVE-2020-0778
CVE-2020-0791

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