High severity · published Feb 13, 2024
CVE-2024-21338
Windows Kernel Elevation of Privilege Vulnerability
RansomwareIn wildKEV
7.8
CVSS
59.8%
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)59.8% · higher than 99% of CVEs
Exploited in the wildYes
CISA KEVListed Mar 4, 2024
Federal remediation dueMar 25, 2024
Ransomware campaign useKnown
Affected products
Which versions
WI
Windows · Microsoft
All versions, or not specified · source: KEV
W1
Windows 10 Version 1809 · Microsoft
10.0.17763.0 before 10.0.17763.5458; 10.0.0 before 10.0.17763.5458 · source: vendor
W1
Windows 10 Version 21H2 · Microsoft
10.0.19043.0 before 10.0.19044.4046 · source: vendor
W1
Windows 10 Version 22H2 · Microsoft
10.0.19045.0 before 10.0.19045.4046 · source: vendor
W1
Windows 11 Version 23H2 · Microsoft
10.0.22631.0 before 10.0.22631.3155 · source: vendor
W1
Windows 11 version 21H2 · Microsoft
10.0.0 before 10.0.22000.2777 · source: vendor
W1
Windows 11 version 22H2 · Microsoft
10.0.22621.0 before 10.0.22621.3155 · source: vendor
W1
Windows 11 version 22H3 · Microsoft
10.0.22631.0 before 10.0.22631.3155 · source: vendor
WS
Windows Server 2019 · Microsoft
10.0.17763.0 before 10.0.17763.5458 · source: vendor, NVD
WS
Windows Server 2019 (Server Core installation) · Microsoft
10.0.17763.0 before 10.0.17763.5458 · source: vendor
WS
Windows Server 2022 · Microsoft
10.0.20348.0 before 10.0.20348.2322 · source: vendor, NVD
WS
Windows Server 2022, 23H2 Edition (Server Core installation) · Microsoft
10.0.25398.0 before 10.0.25398.709 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2024-21338
CVE.org
https://www.cve.org/CVERecord?id=CVE-2024-21338
CISA KEV catalogue
https://www.cisa.gov/known-exploited-vulnerabilities-catalog
vendor-advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-21338
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