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kasperskyKaspersky LabKLA12277
HistorySep 07, 2021 - 12:00 a.m.

KLA12277 RCE vulnerability in Microsoft Windows

2021-09-0700:00:00
Kaspersky Lab
threats.kaspersky.com
209
microsoft windows
rce vulnerability
cve-2021-40444
public exploits
malware
security updates

CVSS2

6.8

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:P/I:P/A:P

CVSS3

8.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

LOW

Integrity Impact

HIGH

Availability Impact

LOW

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:H/A:L

AI Score

8.5

Confidence

Low

EPSS

0.971

Percentile

99.8%

JSON

A remote code execution vulnerability was found in Microsoft Windows. Malicious users can exploit this vulnerability to execute arbitrary code.

Original advisories

CVE-2021-40444

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

CVE list

CVE-2021-40444 critical

KB list

5005613

5005568

5005575

5005627

5005563

5005565

5005623

5005573

5005569

5005566

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.

Affected Products

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

References

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CVSS2

6.8

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:P/I:P/A:P

CVSS3

8.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

LOW

Integrity Impact

HIGH

Availability Impact

LOW

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:H/A:L

AI Score

8.5

Confidence

Low

EPSS

0.971

Percentile

99.8%

JSON
Related for KLA12277
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