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kasperskyKaspersky LabKLA12250
HistoryAug 10, 2021 - 12:00 a.m.

KLA12250 Multiple vulnerabilities in Microsoft Products (ESU)

2021-08-1000:00:00
Kaspersky Lab
threats.kaspersky.com
40

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

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 Products (Extended Security Update). Malicious users can exploit these vulnerabilities to execute arbitrary code, gain privileges, spoof user interface, cause denial of service.

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 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 2016 (Server Core installation)
Windows 10 Version 1909 for ARM64-based Systems
Windows Server 2019 (Server Core installation)
Windows 10 Version 1809 for 32-bit Systems
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 Server 2012 R2
Windows 10 Version 2004 for x64-based Systems
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-2021-34533
CVE-2021-26424
CVE-2021-34537
CVE-2021-26425
CVE-2021-36936
CVE-2021-34483
CVE-2021-36937
CVE-2021-36942
CVE-2021-36947
CVE-2021-34484
CVE-2021-34535
CVE-2021-36927
CVE-2021-34480

Impacts:

ACE

Related products:

Microsoft Windows

KB list:

5005090
5005089
5005036
5005095
5005088
5011525
5011534
5011552
5011529

Microsoft official advisories:

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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

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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