CVE-2023-21546: Windows Layer 2 Tunneling Protocol (L2TP) Remote Code Execution Vulnerability

Published Jan 10, 2023
·
Updated

Windows Layer 2 Tunneling Protocol (L2TP) Remote Code Execution Vulnerability

Affected Software

72 affected componentsFixes available
Microsoft Windows Server 2012 R2
Microsoft Windows Server 2012 R2
Microsoft Windows RT 8.1
Microsoft Windows Server 2012
Microsoft Windows Server 2012
Microsoft Windows Server 2008
Microsoft Windows Server 2008
Microsoft Windows Server 2008
Microsoft Windows Server 2008
Microsoft Windows 8.1 for x64-based systems
Microsoft Windows 8.1 for 32-bit systems
Microsoft Windows Server 2019
Microsoft Windows Server 2019
Microsoft Windows 11=22H2
Microsoft Windows 11=22H2
Microsoft Windows 11=21H2
Microsoft Windows 11=21H2
Microsoft Windows Server 2022
Microsoft Windows Server 2022
Microsoft Windows Server 2016
Microsoft Windows Server 2016
Microsoft Windows 10 1607
Microsoft Windows 10 1607
Microsoft Windows 10 1809
Microsoft Windows 10 1809
Microsoft Windows 10 1809
Microsoft Windows 10 20h2
Microsoft Windows 10 20h2
Microsoft Windows 10 20h2
Microsoft Windows 10 21h2
Microsoft Windows 10 21h2
Microsoft Windows 10 21h2
Microsoft Windows 10 22h2
Microsoft Windows 10 22h2
Microsoft Windows 10 22h2
Microsoft Windows 11 21h2
Microsoft Windows 11 21h2
Microsoft Windows 11 22h2
Microsoft Windows 11 22h2
Microsoft Windows 7=sp1
Microsoft Windows 7=sp1
Microsoft Windows 8.1
Microsoft Windows 8.1
Microsoft Windows RT 8.1
Microsoft Windows Server 2008=sp2
Microsoft Windows Server 2008=sp2
Microsoft Windows Server 2008=r2-sp1
Microsoft Windows Server 2012
Microsoft Windows Server 2012=r2
Microsoft Windows Server 2016
Microsoft Windows Server 2019
Microsoft Windows Server 2022
Microsoft Windows 10=20H2
Microsoft Windows 10=20H2
Microsoft Windows 10=20H2
Microsoft Windows 10=1809
Microsoft Windows 10=1809
Microsoft Windows 10=1809
Microsoft Windows 10=22H2
Microsoft Windows 10=22H2
Microsoft Windows 10=22H2
Microsoft Windows 10=1607
Microsoft Windows 10=1607
Microsoft Windows 10=21H2
Microsoft Windows 10=21H2
Microsoft Windows 10=21H2
Microsoft Windows 10
Microsoft Windows 10
Microsoft Windows Server 2008 R2
Microsoft Windows Server 2008 R2

Event History

Jan 10, 2023
CVE Published
via MITRE·12:00 AM
Data Sourced
via MITRE·12:00 AM
DescriptionSeverity
Data Sourced
via Microsoft·08:00 AM
DescriptionSeverityWeakness
Data Sourced
via NVD·10:15 PM
DescriptionSeverityWeaknessAffected Software
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Frequently Asked Questions

1

What is the severity of CVE-2023-21546?

CVE-2023-21546 is rated as critical due to its potential for remote code execution.

2

How do I fix CVE-2023-21546?

To fix CVE-2023-21546, apply the relevant patches provided by Microsoft based on your affected Windows version.

3

Which systems are affected by CVE-2023-21546?

CVE-2023-21546 affects various versions of Windows including Windows 10, Windows 11, and Windows Server 2022.

4

What are the potential consequences of CVE-2023-21546 exploitation?

Exploitation of CVE-2023-21546 may allow an attacker to execute arbitrary code on the target system.

5

Is there a workaround for CVE-2023-21546 until a patch can be applied?

Currently, there are no effective workarounds for CVE-2023-21546, so it's essential to apply the update as soon as possible.

Contact

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