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Vulnerability DatabaseCVE-2023-21757
CVE-2023-21757:
vulnerability analysis and mitigation
Overview
Windows Layer 2 Tunneling Protocol (L2TP) Denial of Service Vulnerability (CVE-2023-21757) was disclosed on January 10, 2023. The vulnerability affects multiple versions of Microsoft Windows operating systems, including Windows 10 (various versions including 1607, 1809, 20H2, 21H2, 22H2) and Windows 11 (both ARM64 and x64 architectures) (NVD).
Technical details
The vulnerability has been assigned a CVSS v3.1 base score of 7.5 (HIGH) with the vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H. Microsoft has classified this as a NULL Pointer Dereference (CWE-476) vulnerability (NVD).
Impact
This vulnerability could allow an attacker to perform a denial of service attack against affected systems, potentially disrupting the Layer 2 Tunneling Protocol services (MITRE CVE).
Mitigation and workarounds
Microsoft has released security updates to address this vulnerability. Users should apply the appropriate patches through Windows Update or Microsoft's update mechanisms (Microsoft Security).
Additional resources
Source: This report was generated using AI
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