KLA12341
Multiple vulnerabilities in Microsoft Products (ESU)

Multiple vulnerabilities were found in Microsoft Products (Extended Security Update). Malicious users can exploit these vulnerabilities to gain privileges, obtain sensitive information, execute arbitrary code.

Below is a complete list of vulnerabilities:

1. An elevation of privilege vulnerability in Active Directory Domain Services can be exploited remotely to gain privileges.
2. An elevation of privilege vulnerability in NTFS can be exploited remotely to gain privileges.
3. An information disclosure vulnerability in Windows Remote Desktop Protocol (RDP) can be exploited remotely to obtain sensitive information.
4. An information disclosure vulnerability in Remote Desktop Protocol Client can be exploited remotely to obtain sensitive information.
5. A remote code execution vulnerability in Remote Desktop Client can be exploited remotely to execute arbitrary code.
6. An elevation of privilege vulnerability in Windows Fast FAT File System Driver can be exploited remotely to gain privileges.
7. An elevation of privilege vulnerability in Windows Installer can be exploited remotely to gain privileges.
8. An elevation of privilege vulnerability in Windows Kernel can be exploited remotely to gain privileges.
9. A remote code execution vulnerability in Microsoft COM for Windows can be exploited remotely to execute arbitrary code.

Public exploits exist for this vulnerability.

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

Windows 10 Version 1607 for x64-based Systems
Windows Server 2012 R2
Windows Server 2012 (Server Core installation)
Windows Server 2016
Windows 8.1 for 32-bit systems
Windows 10 Version 20H2 for 32-bit Systems
Windows 7 for x64-based Systems Service Pack 1
Windows Server 2022
Windows 11 for ARM64-based Systems
Windows Server 2019
Windows Server 2012 R2 (Server Core installation)
Windows Server, version 2004 (Server Core installation)
Windows 10 for x64-based Systems
Windows 10 Version 1909 for x64-based Systems
Windows 10 Version 20H2 for x64-based Systems
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)
Windows 10 Version 2004 for 32-bit Systems
Windows RT 8.1
Windows 10 Version 21H1 for ARM64-based Systems
Windows Server 2019 (Server Core installation)
Windows Server 2008 for x64-based Systems Service Pack 2
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation)
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation)
Windows Server 2022 (Server Core installation)
Windows Server 2008 for 32-bit Systems Service Pack 2
Windows 10 Version 21H1 for 32-bit Systems
Windows 8.1 for x64-based systems
Windows 10 Version 1909 for ARM64-based Systems
Windows 10 Version 1809 for 32-bit Systems
Windows Server 2012
Windows 10 Version 20H2 for ARM64-based Systems
Windows 10 Version 1909 for 32-bit Systems
Windows Server, version 20H2 (Server Core Installation)
Windows 10 Version 1607 for 32-bit Systems
Windows 7 for 32-bit Systems Service Pack 1
Windows Server 2008 R2 for x64-based Systems Service Pack 1
Windows Server 2016 (Server Core installation)
Windows 11 for x64-based Systems
Windows 10 Version 2004 for x64-based Systems
Windows 10 Version 2004 for ARM64-based Systems
Windows 10 Version 21H1 for x64-based Systems
Windows 10 Version 1809 for ARM64-based Systems
Windows 10 Version 1809 for x64-based Systems
Remote Desktop client for Windows Desktop
Windows 10 for 32-bit 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-2021-42282
CVE-2021-41367
CVE-2021-41371
CVE-2021-38665
CVE-2021-38666
CVE-2021-42291
CVE-2021-42278
CVE-2021-41377
CVE-2021-41379
CVE-2021-42285
CVE-2021-42283
CVE-2021-42275
CVE-2021-38631
CVE-2021-41370
CVE-2021-42287

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