High severity · published Jan 10, 2023
CVE-2023-21538
.NET Denial of Service Vulnerability
7.5
CVSS
2.8%
EPSS
No
On KEV
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.8% · higher than 87% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
NE
.net · Microsoft
6.0.0 · source: NVD
FE
Fedora · Fedoraproject
36; 37 · source: NVD
PO
Powershell · Microsoft
7.2 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-21538
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-21538
msrc.microsoft.com
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21538
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