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kasperskyKaspersky LabKLA12259
HistoryAug 10, 2021 - 12:00 a.m.

KLA12259 Multiple vulnerabilities in Microsoft Windows

2021-08-1000:00:00
Kaspersky Lab
threats.kaspersky.com
104

9.9 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

8.9 High

AI Score

Confidence

High

7.5 High

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

0.853 High

EPSS

Percentile

98.5%

JSON

Detect date:

08/10/2021

Severity:

Critical

Description:

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

Exploitation:

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

Affected products:

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

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-2021-36948
CVE-2021-26424
CVE-2021-26433
CVE-2021-36945
CVE-2021-26432
CVE-2021-36926
CVE-2021-36942
CVE-2021-36947
CVE-2021-34487
CVE-2021-34530
CVE-2021-34480
CVE-2021-34534
CVE-2021-36927
CVE-2021-34486
CVE-2021-36932
CVE-2021-34533
CVE-2021-34537
CVE-2021-36937
CVE-2021-36936
CVE-2021-26425
CVE-2021-34483
CVE-2021-26431
CVE-2021-26426
CVE-2021-34536
CVE-2021-34484
CVE-2021-34535
CVE-2021-36933
CVE-2021-36938

Impacts:

ACE

Related products:

Microsoft Windows

CVE-IDS:

CVE-2021-345337.8Critical
CVE-2021-264249.9Critical
CVE-2021-345377.8Critical
CVE-2021-264257.8Critical
CVE-2021-369368.8Critical
CVE-2021-344837.8Critical
CVE-2021-369377.8Critical
CVE-2021-369427.5Critical
CVE-2021-369478.8Critical
CVE-2021-344847.8Critical
CVE-2021-345358.8Critical
CVE-2021-369277.8Critical
CVE-2021-344806.8High
CVE-2021-369487.8Critical
CVE-2021-264337.5Critical
CVE-2021-369457.3High
CVE-2021-264329.8Critical
CVE-2021-369267.5Critical
CVE-2021-344877.0High
CVE-2021-345307.8Critical
CVE-2021-345346.8High
CVE-2021-344867.8Critical
CVE-2021-369327.5Critical
CVE-2021-264317.8Critical
CVE-2021-264267.0High
CVE-2021-345367.8Critical
CVE-2021-369337.5Critical
CVE-2021-369385.5High

KB list:

4023814
5005036
5005031
5005033
5005030
5005106
5005040
5005099
5005043
5005076
5005094
5011535
5011564
5011560
5011527

Microsoft official advisories:

References

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9.9 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

8.9 High

AI Score

Confidence

High

7.5 High

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

0.853 High

EPSS

Percentile

98.5%

JSON
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