KLA12387 Multiple vulnerabilities in Microsoft Windows

Multiple vulnerabilities were found in Microsoft Windows. Malicious users can exploit these vulnerabilities to execute arbitrary code, cause denial of service, gain privileges, obtain sensitive information.

Below is a complete list of vulnerabilities:

1. A remote code execution vulnerability in Windows Encrypting File System (EFS) can be exploited remotely to execute arbitrary code.
2. A denial of service vulnerability in Windows Hyper-V can be exploited remotely to cause denial of service.
3. An elevation of privilege vulnerability in Windows NTFS can be exploited remotely to gain privileges.
4. An information disclosure vulnerability in Storage Spaces Controller can be exploited remotely to obtain sensitive information.
5. A remote code execution vulnerability in HEVC Video Extensions can be exploited remotely to execute arbitrary code.
6. An information disclosure vulnerability in Microsoft Local Security Authority Server (lsasrv) can be exploited remotely to obtain sensitive information.
7. A denial of service vulnerability in DirectX Graphics Kernel File can be exploited remotely to cause denial of service.
8. An elevation of privilege vulnerability in Windows Remote Access Connection Manager can be exploited remotely to gain privileges.
9. An elevation of privilege vulnerability in Windows Remote Access can be exploited remotely to gain privileges.
10. An elevation of privilege vulnerability in Windows Installer can be exploited remotely to gain privileges.
11. An elevation of privilege vulnerability in Windows Recovery Environment Agent can be exploited remotely to gain privileges.
12. An elevation of privilege vulnerability in Windows Common Log File System Driver can be exploited remotely to gain privileges.
13. A remote code execution vulnerability in Windows Event Tracing can be exploited remotely to execute arbitrary code.
14. A remote code execution vulnerability in Windows Fax Service can be exploited remotely to execute arbitrary code.
15. A memory corruption vulnerability in iSNS Server can be exploited remotely to execute arbitrary code.
16. An elevation of privilege vulnerability in Windows Mobile Device Management can be exploited remotely to gain privileges.
17. An elevation of privilege vulnerability in Windows Setup can be exploited remotely to gain privileges.
18. An elevation of privilege vulnerability in Windows Encrypting File System (EFS) can be exploited remotely to gain privileges.
19. An information disclosure vulnerability in Windows Common Log File System Driver can be exploited remotely to obtain sensitive information.
20. An elevation of privilege vulnerability in Windows TCP/IP Driver can be exploited remotely to gain privileges.
21. An information disclosure vulnerability in Microsoft Message Queuing can be exploited remotely to obtain sensitive information.
22. An information disclosure vulnerability in Windows Kernel can be exploited remotely to obtain sensitive information.
23. A remote code execution vulnerability in Remote Desktop Client can be exploited remotely to execute arbitrary code.
24. An information disclosure vulnerability in VP9 Video Extensions can be exploited remotely to obtain sensitive information.
25. A denial of service vulnerability in SymCrypt can be exploited remotely to cause denial of service.
26. An elevation of privilege vulnerability in Windows Digital TV Tuner can be exploited remotely to gain privileges.
27. A remote code execution vulnerability in Web Media Extensions can be exploited remotely to execute arbitrary code.
28. An elevation of privilege vulnerability in Windows Media Center can be exploited remotely to gain privileges.
29. An elevation of privilege vulnerability in Windows Digital Media Receiver can be exploited remotely to gain privileges.
30. An elevation of privilege vulnerability in Windows Print Spooler can be exploited remotely to gain privileges.
31. An elevation of privilege vulnerability in NTFS Set Short Name can be exploited remotely to gain privileges.

Original advisories

CVE-2021-43217

CVE-2021-43246

CVE-2021-43231

CVE-2021-43227

CVE-2021-40452

CVE-2021-43216

CVE-2021-43219

CVE-2021-43235

CVE-2021-43223

CVE-2021-43238

CVE-2021-43883

CVE-2021-43229

CVE-2021-43239

CVE-2021-43226

CVE-2021-43232

CVE-2021-43234

CVE-2021-40453

CVE-2021-43215

CVE-2021-43880

CVE-2021-43237

CVE-2021-43893

CVE-2021-43230

CVE-2021-43224

CVE-2021-43247

CVE-2021-43222

CVE-2021-41360

CVE-2021-43244

CVE-2021-43233

CVE-2021-43243

CVE-2021-43228

CVE-2021-43245

CVE-2021-43214

CVE-2021-40441

CVE-2021-43248

CVE-2021-41333

CVE-2021-43236

CVE-2021-43207

CVE-2021-43240

Exploitation

Public exploits exist for this vulnerability.

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

Related products

Microsoft-Windows

Microsoft-Windows-Server

Microsoft-Windows-Server-2012

Microsoft-Windows-8

Microsoft-Windows-7

Microsoft-Windows-Server-2008

Windows-RT

Microsoft-Windows-10

Microsoft-Windows-Server-2016

Microsoft-Windows-Server-2019

CVE list

CVE-2021-43217 critical

CVE-2021-43246 high

CVE-2021-43231 critical

CVE-2021-43227 high

CVE-2021-40452 critical

CVE-2021-43216 high

CVE-2021-43219 critical

CVE-2021-43235 high

CVE-2021-43223 critical

CVE-2021-43238 critical

CVE-2021-43883 critical

CVE-2021-43229 critical

CVE-2021-43239 critical

CVE-2021-43226 critical

CVE-2021-43232 critical

CVE-2021-43234 critical

CVE-2021-40453 critical

CVE-2021-43215 critical

CVE-2021-43880 high

CVE-2021-43237 high

CVE-2021-43893 critical

CVE-2021-43230 critical

CVE-2021-43224 high

CVE-2021-43247 critical

CVE-2021-43222 critical

CVE-2021-41360 critical

CVE-2021-43244 high

CVE-2021-43233 critical

CVE-2021-43243 high

CVE-2021-43228 critical

CVE-2021-43245 critical

CVE-2021-43214 critical

CVE-2021-40441 critical

CVE-2021-43248 critical

CVE-2021-41333 critical

CVE-2021-43236 critical

CVE-2021-43207 critical

CVE-2021-43240 critical

KB list

5008223

5008215

5008218

5008206

5008212

5008263

5008230

5008207

5008285

5015877

5015874

Solution

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

Impacts

• ACE

Arbitrary code execution. Exploitation of vulnerabilities with this impact can lead to executing by abuser any code or commands at vulnerable machine or process.

• OSI

Obtain sensitive information. Exploitation of vulnerabilities with this impact can lead to capturing by abuser information, critical for user or system.

• DoS

Denial of service. Exploitation of vulnerabilities with this impact can lead to loss of system availability or critical functional fault.

• PE

Privilege escalation. Exploitation of vulnerabilities with this impact can lead to performing by abuser actions, which are normally disallowed for current role.

Affected Products

• Windows Server, version 20H2 (Server Core Installation)Windows 11 for x64-based SystemsWindows 10 Version 2004 for 32-bit SystemsWindows Server 2022Windows 8.1 for x64-based systemsWindows Server, version 2004 (Server Core installation)Windows 10 for 32-bit SystemsWindows 7 for x64-based Systems Service Pack 1Windows 10 Version 21H2 for 32-bit SystemsWindows 7 for 32-bit Systems Service Pack 1Windows Server 2022 (Server Core installation)Windows 10 Version 1809 for x64-based SystemsWindows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)Windows Server 2008 for x64-based Systems Service Pack 2Windows 10 Version 1607 for x64-based SystemsWindows 10 Version 21H1 for ARM64-based SystemsWindows 8.1 for 32-bit systemsWindows RT 8.1Windows 10 Version 1809 for ARM64-based SystemsWindows Server 2016Windows Server 2019Windows 10 Version 21H1 for x64-based SystemsWindows 10 Version 1909 for ARM64-based SystemsWindows 10 Version 21H2 for ARM64-based SystemsWindows 10 Version 21H2 for x64-based SystemsWindows 10 Version 20H2 for x64-based SystemsWindows 10 Version 1909 for x64-based SystemsWindows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation)Windows Server 2019 (Server Core installation)Windows 10 Version 20H2 for ARM64-based SystemsWindows 10 Version 20H2 for 32-bit SystemsWindows 10 Version 1909 for 32-bit SystemsWindows Server 2012 R2 (Server Core installation)Windows 11 for ARM64-based SystemsWindows 10 Version 1607 for 32-bit SystemsWindows Server 2008 for 32-bit Systems Service Pack 2Windows Server 2016 (Server Core installation)Windows Server 2012 R2Windows 10 Version 21H1 for 32-bit SystemsWindows 10 Version 2004 for x64-based SystemsWindows Server 2012 (Server Core installation)Windows 10 Version 2004 for ARM64-based SystemsWindows Server 2012Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation)Windows 10 for x64-based SystemsWindows Server 2008 R2 for x64-based Systems Service Pack 1Windows 10 Version 1809 for 32-bit Systems