Vulnerability Details : CVE-2021-43247
Windows TCP/IP Driver Elevation of Privilege Vulnerability
Vulnerability category: Memory CorruptionGain privilege
Products affected by CVE-2021-43247
- cpe:2.3:o:microsoft:windows_server:20h2:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_server:2022:*:*:*:*:*:*:*
- 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_10:21h2:*:*:*:*:*:arm64:*
- cpe:2.3:o:microsoft:windows_10:21h2:*:*:*:*:*:x64:*
- cpe:2.3:o:microsoft:windows_10:21h2:*:*:*:*:*:x86:*
- cpe:2.3:o:microsoft:windows_server_2016:2004:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_server_2019:-:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_11:-:*:*:*:*:*:arm64:*
- cpe:2.3:o:microsoft:windows_11:-:*:*:*:*:*:x64:*
Exploit prediction scoring system (EPSS) score for CVE-2021-43247
0.06%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 25 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-43247
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
7.2
|
HIGH | AV:L/AC:L/Au:N/C:C/I:C/A:C |
3.9
|
10.0
|
NIST | |
|
7.8
|
HIGH | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
1.8
|
5.9
|
NIST | |
|
7.8
|
HIGH | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
1.8
|
5.9
|
Microsoft Corporation |
CWE ids for CVE-2021-43247
-
The product writes data past the end, or before the beginning, of the intended buffer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-43247
-
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-43247
CVE-2021-43247 - Security Update Guide - Microsoft - Windows TCP/IP Driver Elevation of Privilege VulnerabilityPatch;Vendor Advisory
-
https://www.zerodayinitiative.com/advisories/ZDI-21-1554/
ZDI-21-1554 | Zero Day InitiativeThird Party Advisory;VDB Entry
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