Medium severity · published Jun 8, 2021
CVE-2021-31201
Microsoft Enhanced Cryptographic Provider Elevation of Privilege Vulnerability
In wildKEV
5.2
CVSS
2.6%
EPSS
Yes
On KEV
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)2.6% · higher than 85% of CVEs
Exploited in the wildYes
CISA KEVListed Nov 3, 2021
Federal remediation dueNov 17, 2021
Ransomware campaign useNot known
Affected products
Which versions
W1
Windows 10 Version 1507 · Microsoft
10.0.0 before 10.0.10240.18967 · source: vendor
W1
Windows 10 Version 1607 · Microsoft
10.0.0 before 10.0.14393.4467 · source: vendor
W1
Windows 10 Version 1809 · Microsoft
10.0.0 before 10.0.17763.1999 · source: vendor
W1
Windows 10 Version 1909 · Microsoft
10.0.0 before 10.0.18363.1621 · source: vendor
W1
Windows 10 Version 2004 · Microsoft
10.0.0 before 10.0.19041.1052 · source: vendor
W1
Windows 10 Version 20H2 · Microsoft
10.0.0 before 10.0.19042.1052 · source: vendor
W1
Windows 10 Version 21H1 · Microsoft
10.0.0 before 10.0.19043.1052 · source: vendor
W7
Windows 7 · Microsoft
6.1.0 before 6.1.7601.25632 · source: vendor, NVD
W7
Windows 7 Service Pack 1 · Microsoft
6.1.0 before 6.1.7601.25632 · source: vendor
W8
Windows 8.1 · Microsoft
6.3.0 before 6.3.9600.20045; 6.3.0 before 6.3.9600.20044 · source: vendor, NVD
WS
Windows Server 2008 Service Pack 2 · Microsoft
6.0.0 before 6.0.6003.21137 · source: vendor
WS
Windows Server 2008 R2 Service Pack 1 · Microsoft
6.1.0 before 6.1.7601.25632 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-31201
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-31201
CISA KEV catalogue
https://www.cisa.gov/known-exploited-vulnerabilities-catalog
x_refsource_MISC
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31201
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