Vulnerability Details : CVE-2021-31199
Microsoft Enhanced Cryptographic Provider Elevation of Privilege Vulnerability
Vulnerability category: Gain privilege
Products affected by CVE-2021-31199
- cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:*
- cpe:2.3:o:microsoft:windows_7:-:sp1:*:*:*:*:*:*
- 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:-:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_rt_8.1:-:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_server_2004:*:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_10_21h1:*:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_10_20h2:*:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_10_1507:*:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_10_1909:*:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_10_2004:*:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_server_20h2:*:*:*:*:*:*:*:*
CVE-2021-31199 is in the CISA Known Exploited Vulnerabilities Catalog
CISA vulnerability name:
Microsoft Enhanced Cryptographic Provider Privilege Escalation Vulnerability
CISA required action:
Apply updates per vendor instructions.
CISA description:
Microsoft Enhanced Cryptographic Provider contains an unspecified vulnerability that allows for privilege escalation.
Notes:
https://nvd.nist.gov/vuln/detail/CVE-2021-31199
Added on
2021-11-03
Action due date
2021-11-17
Exploit prediction scoring system (EPSS) score for CVE-2021-31199
0.51%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 77 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-31199
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.6
|
MEDIUM | AV:L/AC:L/Au:N/C:P/I:P/A:P |
3.9
|
6.4
|
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 | |
|
5.2
|
MEDIUM | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N |
2.0
|
2.7
|
Microsoft Corporation |
References for CVE-2021-31199
-
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31199
CVE-2021-31199 - Security Update Guide - Microsoft - Microsoft Enhanced Cryptographic Provider Elevation of Privilege VulnerabilityPatch;Vendor Advisory
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