First published: Tue Jan 10 2023(Updated: )
Windows Layer 2 Tunneling Protocol (L2TP) Remote Code Execution Vulnerability
Credit: secure@microsoft.com secure@microsoft.com
Affected Software | Affected Version | How to fix |
---|---|---|
Microsoft Windows 10 | =20H2 | |
Microsoft Windows Server 2019 | ||
Microsoft Windows 10 | =1607 | |
Microsoft Windows 10 | =22H2 | |
Microsoft Windows 11 | =21H2 | |
Microsoft Windows 11 | =21H2 | |
Microsoft Windows 10 | =1809 | |
Microsoft Windows 10 | =21H2 | |
Microsoft Windows 10 | ||
Microsoft Windows 10 | =21H2 | |
Microsoft Windows 10 | =22H2 | |
Microsoft Windows 10 | =20H2 | |
Microsoft Windows 7 | ||
Microsoft Windows 8.1 for x64-based systems | ||
Microsoft Windows 10 | =21H2 | |
Microsoft Windows Server 2012 R2 | ||
Microsoft Windows Server 2019 | ||
Microsoft Windows 11 | =22H2 | |
Microsoft Windows 10 | ||
Microsoft Windows 10 | =1809 | |
Microsoft Windows Server 2016 | ||
Microsoft Windows 8.1 for 32-bit systems | ||
Microsoft Windows 10 | =1809 | |
Microsoft Windows Server 2016 | ||
Microsoft Windows 10 | =22H2 | |
Microsoft Windows Server 2008 R2 | ||
Microsoft Windows Server 2012 R2 | ||
Microsoft Windows Server 2022 | ||
Microsoft Windows 10 | =20H2 | |
Microsoft Windows Server 2022 | ||
Microsoft Windows 7 | ||
Microsoft Windows Server 2008 R2 | ||
Microsoft Windows 11 | =22H2 | |
Microsoft Windows 10 | =1607 | |
Microsoft Windows Server 2012 x64 | ||
Microsoft Windows Server 2012 x64 | ||
Microsoft Windows RT | ||
Microsoft Windows Server 2008 Itanium | ||
Microsoft Windows Server 2008 Itanium | ||
Microsoft Windows 10 Version 1607 x86 | ||
Microsoft Windows 10 Version 1607 x86 | ||
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 | ||
Microsoft Windows Server 2008 Itanium | =sp2 | |
Microsoft Windows Server 2008 Itanium | =sp2 | |
Microsoft Windows Server 2008 Itanium | =r2-sp1 | |
Microsoft Windows Server 2012 x64 | ||
Microsoft Windows Server 2012 x64 | =r2 | |
Microsoft Windows Server 2016 | ||
Microsoft Windows Server 2019 | ||
Microsoft Windows Server 2022 | ||
Microsoft Windows Server 2008 Itanium | ||
Microsoft Windows Server 2008 Itanium |
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CVE-2023-21555 has a severity rating of Critical, indicating a significant security risk.
CVE-2023-21555 affects various versions of Windows, including Windows 10, Windows 11, and several server editions.
To mitigate CVE-2023-21555, apply the recommended security updates provided by Microsoft for your specific Windows version.
CVE-2023-21555 can lead to remote code execution, allowing attackers to take control of the affected system.
Currently, the best approach for CVE-2023-21555 is to apply the security patches as there are no documented workarounds.