High severity · published Mar 14, 2023
CVE-2023-23421
Windows Kernel Elevation of Privilege Vulnerability
7.8
CVSS
0.7%
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)0.7% · higher than 52% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
WI
Windows · Microsoft
before 10.0.10240.19805 · source: NVD
W1
Windows 10 1607 · Microsoft
before 10.0.14393.5786 · source: NVD
W1
Windows 10 1809 · Microsoft
before 10.0.17763.4131 · source: NVD
W1
Windows 10 20h2 · Microsoft
before 10.0.19042.2728 · source: NVD
W1
Windows 10 21h2 · Microsoft
before 10.0.19044.2728 · source: NVD
W1
Windows 10 22h2 · Microsoft
before 10.0.19045.2728 · source: NVD
W1
Windows 11 21h2 · Microsoft
before 10.0.22000.1696 · source: NVD
W1
Windows 11 22h2 · Microsoft
before 10.0.22000.1413 · source: NVD
WS
Windows Server 2008 · Microsoft
r2 · source: NVD
WS
Windows Server 2012 · Microsoft
r2 · source: NVD
WS
Windows Server 2016 · Microsoft
All versions, or not specified · source: NVD
WS
Windows Server 2019 · Microsoft
All versions, or not specified · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-23421
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-23421
Patch
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-23421
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