Vulnerability Details : CVE-2021-40463
Windows Network Address Translation (NAT) Denial of Service Vulnerability
Vulnerability category: Denial of service
Products affected by CVE-2021-40463
- cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_server_2012:-:r2:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_8.1:-:*:*:*:*:*:x64:*
- cpe:2.3:o:microsoft:windows_8.1:-:*:*:*:*:*:x86:*
- cpe:2.3:o:microsoft:windows_rt_8.1:-:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_10:-:*:*:*:*:*:x64:*
- cpe:2.3:o:microsoft:windows_10:-:*:*:*:*:*:x86:*
- cpe:2.3:o:microsoft:windows_10:1607:*:*:*:*:*:x64:*
- cpe:2.3:o:microsoft:windows_10:1607:*:*:*:*:*:x86:*
- cpe:2.3:o:microsoft:windows_10:1809:*:*:*:*:*:x64:*
- cpe:2.3:o:microsoft:windows_10:1909:*:*:*:*:*:x64:*
- cpe:2.3:o:microsoft:windows_10:20h2:*:*:*:*:*:x64:*
- cpe:2.3:o:microsoft:windows_10:2004:*:*:*:*:*:x64:*
- cpe:2.3:o:microsoft:windows_10:20h2:*:*:*:*:*:arm64:*
- cpe:2.3:o:microsoft:windows_10:1909:*:*:*:*:*:x86:*
- cpe:2.3:o:microsoft:windows_10:1909:*:*:*:*:*:arm64:*
- cpe:2.3:o:microsoft:windows_10:1809:*:*:*:*:*:arm64:*
- cpe:2.3:o:microsoft:windows_10:1809:*:*:*:*:*:x86:*
- cpe:2.3:o:microsoft:windows_10:2004:*:*:*:*:*:arm64:*
- cpe:2.3:o:microsoft:windows_10:2004:*:*:*:*:*:x86:*
- cpe:2.3:o:microsoft:windows_10:20h2:*:*:*:*:*:x86:*
- cpe:2.3:o:microsoft:windows_10:21h1:*:*:*:*:*:x64:*
- cpe:2.3:o:microsoft:windows_10:21h1:*:*:*:*:*:arm64:*
- cpe:2.3:o:microsoft:windows_10:21h1:*:*:*:*:*:x86:*
- cpe:2.3:o:microsoft:windows_server_2016:-:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_server_2016:20h2:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_server_2016:2004:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_server_2019:-:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_11_21h2:*:*:*:*:*:*:x64:*
- cpe:2.3:o:microsoft:windows_11_21h2:*:*:*:*:*:*:arm64:*
Exploit prediction scoring system (EPSS) score for CVE-2021-40463
0.15%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 51 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-40463
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.0
|
MEDIUM | AV:N/AC:L/Au:S/C:N/I:N/A:P |
8.0
|
2.9
|
NIST | |
|
6.5
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
2.8
|
3.6
|
NIST | |
|
7.7
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H |
3.1
|
4.0
|
Microsoft Corporation |
References for CVE-2021-40463
-
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-40463
CVE-2021-40463 - Security Update Guide - Microsoft - Windows NAT Denial of Service VulnerabilityPatch;Vendor Advisory
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