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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
187

8.8 High

CVSS3

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

7.5 High

AI Score

Confidence

High

6.8 Medium

CVSS2

Access Vector

NETWORK

Access 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

0.969 High

EPSS

Percentile

99.7%

JSON

Detect date:

09/07/2021

Severity:

High

Description:

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

Exploitation:

Public exploits exist for this vulnerability.

Affected products:

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

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)

Original advisories:

CVE-2021-40444

Impacts:

ACE

Related products:

Microsoft Windows

CVE-IDS:

CVE-2021-404448.8Critical

Microsoft official advisories:

KB list:

5005613
5005568
5005575
5005627
5005563
5005565
5005623
5005573
5005569
5005566

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8.8 High

CVSS3

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

7.5 High

AI Score

Confidence

High

6.8 Medium

CVSS2

Access Vector

NETWORK

Access 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

0.969 High

EPSS

Percentile

99.7%

JSON
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