.NET Denial of Service Vulnerability
CVE-2023-21538

7.5HIGH

Key Information:

Vendor

Microsoft
Status
.net 6.0
Powershell 7.2
Vendor
CVE Published:
10 January 2023

What is CVE-2023-21538?

This .NET Denial of Service vulnerability allows attackers to disrupt service availability by sending specially crafted requests to affected applications. This could lead to unexpected downtime, impacting users and businesses relying on these services. Affected products include multiple versions of the .NET Framework, with remediation steps available from Microsoft.

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Affected Version(s)

.NET 6.0 Unknown 6.0.0 < 6.0.13

PowerShell 7.2 Unknown 7.2.0 < 7.2.9

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE...
vendor-advisory

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

JSON
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