🛡️ CVE-2023-21556
🟠 CVSS 8.1 — High ✅ No Known Exploit CWE-191 NVD
8.1
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

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

Details

Severity HIGH
CVSS Score 8.1
CVSS Vector CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE CWE-191
Public Exploit ✅ No
Source NVD
Published 2023-01-10
Updated 2026-06-08
Modified 2024-11-21
Fix URL N/A

Affected Packages

Software From version Fixed in
windows-10-1607
windows-10-1809
windows-10-20h2
windows-10-21h2
windows-10-22h2
windows-11-21h2
windows-11-22h2
windows-7
windows-8.1
windows-rt-8.1
windows-server-2008
windows-server-2012
windows-server-2016
windows-server-2019
windows-server-2022

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