Cloud Vulnerability DB
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Vulnerability DatabaseCVE-2021-40463
CVE-2021-40463:
vulnerability analysis and mitigation
Overview
Windows Network Address Translation (NAT) Denial of Service Vulnerability (CVE-2021-40463) was disclosed on October 12, 2021. This vulnerability affects various versions of Microsoft Windows operating systems. The vulnerability was initially identified and reported by Microsoft Corporation (MSRC).
Technical details
The vulnerability has received varying severity assessments with a CVSS v3.1 Base Score of 6.5 (MEDIUM) from NIST with vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H, while Microsoft Corporation assessed it at 7.7 (HIGH) with vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H. The CVSS v2.0 Base Score is 4.0 (MEDIUM) with vector (AV:N/AC:L/Au:S/C:N/I:N/A:P) (NVD).
Impact
This vulnerability primarily affects the availability of the system through a denial of service condition in Windows Network Address Translation (NAT) services. The impact is focused on system availability with no direct effect on confidentiality or integrity (NVD).
Mitigation and workarounds
Microsoft has released security patches to address this vulnerability. Users are advised to apply the security updates available through the Microsoft Security Response Center (MSRC).
Additional resources
Source: This report was generated using AI
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