CVE-2023-21556

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

Score

CVSS 3.1 8.1 High

Status

Modified - secure@microsoft.com

Published

2023-01-10

Last modified

2025-01-01

Weaknesses

CWE-191

Affected products

• Windows 10 1507 (Microsoft)
• Windows 10 1607 (Microsoft)
• Windows 10 1809 (Microsoft)
• Windows 10 20H2 (Microsoft)
• Windows 10 20h2 (Microsoft)
• Windows 10 21H2 (Microsoft)
• Windows 10 21h2 (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 (Microsoft)
• Windows 8.1 (Microsoft)
• Windows Rt 8.1 (Microsoft)
• Windows Server 2008 (Microsoft)
• Windows Server 2008 R2 (Microsoft)
• Windows Server 2008 Sp2 (Microsoft)
• Windows Server 2012 (Microsoft)
• Windows Server 2012 R2 (Microsoft)
• Windows Server 2016 (Microsoft)
• Windows Server 2019 (Microsoft)
• Windows Server 2022 (Microsoft)

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21556