High severity · published Jun 8, 2021
CVE-2021-31952
Windows Kernel-Mode Driver Elevation of Privilege Vulnerability
7.8
CVSS
0.8%
EPSS
No
On KEV
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.8% · higher than 57% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
WI
Windows · Microsoft
20h2; 21h1; 1909; 2004 · source: NVD
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
WS
Windows Server 2019 · Microsoft
10.0.0 before 10.0.17763.1999 · source: vendor, NVD
WS
Windows Server 2019 (Server Core installation) · Microsoft
10.0.0 before 10.0.17763.1999 · source: vendor
WS
Windows Server version 2004 · Microsoft
10.0.0 before 10.0.19041.1052 · source: vendor
WS
Windows Server version 20H2 · Microsoft
10.0.0 before 10.0.19042.1052 · source: vendor
WS
Windows Server 2016 · Microsoft
20h2; 2004 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-31952
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-31952
Patch
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31952
More from Windows
10.0
CVE-2020-1350
Microsoft Windows DNS Server Remote Code Execution Vulnerability
9.8
CVE-2025-59287
Windows Server Update Service (WSUS) Remote Code Execution Vulnerability
9.8
CVE-2019-0708
Microsoft Remote Desktop Services Remote Code Execution Vulnerability
9.8
CVE-2017-8543
Microsoft Windows Search Remote Code Execution Vulnerability
9.8
CVE-2008-4250
Microsoft Windows Buffer Overflow Vulnerability