High severity · published Jan 11, 2022
CVE-2022-21882
Win32k Elevation of Privilege Vulnerability
RansomwareIn wildKEV
7.8
CVSS
59.2%
EPSS
Yes
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)59.2% · higher than 99% of CVEs
Exploited in the wildYes
CISA KEVListed Feb 4, 2022
Federal remediation dueFeb 18, 2022
Ransomware campaign useKnown
Affected products
Which versions
W1
Windows 10 Version 1809 · Microsoft
10.0.17763.0 before 10.0.17763.2452; 10.0.0 before 10.0.17763.2452 · source: vendor
W1
Windows 10 Version 1909 · Microsoft
10.0.0 before 10.0.18363.2037 · source: vendor
W1
Windows 10 Version 20H2 · Microsoft
10.0.0 before 10.0.19042.1466 · source: vendor
W1
Windows 10 Version 21H1 · Microsoft
10.0.0 before 10.0.19043.1466 · source: vendor
W1
Windows 10 Version 21H2 · Microsoft
10.0.19043.0 before 10.0.19044.1466 · source: vendor
W1
Windows 11 version 21H2 · Microsoft
10.0.0 before 10.0.22000.434 · source: vendor
WS
Windows Server 2019 · Microsoft
10.0.17763.0 before 10.0.17763.2452 · source: vendor, NVD
WS
Windows Server 2019 (Server Core installation) · Microsoft
10.0.17763.0 before 10.0.17763.2452 · source: vendor
WS
Windows Server 2022 · Microsoft
10.0.20348.0 before 10.0.20348.469 · source: vendor, NVD
WS
Windows Server version 20H2 · Microsoft
10.0.0 before 10.0.19042.1466 · source: vendor
W1
Windows 10 1809 · Microsoft
before 10.0.17763.2452; before 10.0.17763.2452 · source: NVD
W1
Windows 10 1909 · Microsoft
before 10.0.18363.2037 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-21882
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-21882
CISA KEV catalogue
https://www.cisa.gov/known-exploited-vulnerabilities-catalog
vendor-advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-21882
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