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Vulnerabilities

Vulnerability · CVE-2023-38180

Microsoft .NET Core and Visual Studio Denial-of-Service Vulnerability

Published Aug 8, 2023 · catalog updated Aug 10, 2026 · Microsoft .NET Core and Visual Studio

Patch now

CVE-2023-38180 is in the CISA known-exploited catalog, due Aug 30, 2023. Confirm Microsoft .NET Core and Visual Studio against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Gaps on this record

  • No version range is stored. A customer cannot check an installed version against this record.
Severity
High7.5
Known exploitation
CISA KEV and VulnCheck KEV
EPSS
14.02%
Remediation
Remediation guidance
Affected products
cpe fedoraproject/fedora · cpe microsoft/.net · cpe microsoft/asp.net core · cpe microsoft/visual studio 2022 · vendor Microsoft .NET Core and Visual Studio

Microsoft .NET Core and Visual Studio contain an unspecified vulnerability that allows for denial-of-service (DoS).

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe fedoraproject/fedora37
  • cpe fedoraproject/fedora38
  • cpe microsoft/.netversion unspecified
  • cpe microsoft/asp.net coreversion unspecified
  • cpe microsoft/visual studio 2022version unspecified
  • vendor Microsoft .NET Core and Visual Studioversion unspecified

How to fix CVE-2023-38180

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

CVE-2023-38180 is in the CISA known-exploited catalog, due Aug 30, 2023. Confirm Microsoft .NET Core and Visual Studio against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Which versions are affected?

Compare what you have installed with 37, 38. Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

What should an analyst verify?

CWE-400: Uncontrolled Resource Consumption. EPSS 14.02%. The CISA KEV listing is the exploitation evidence. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Aug 8, 2023 · Catalog

    Detected

    Microsoft .NET Core and Visual Studio contain an unspecified vulnerability that allows for denial-of-service (DoS).

  2. Aug 9, 2023 · CISA KEV

    Known exploited

    Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

  3. Aug 30, 2023 · CISA KEV

    Remediation due

    Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

  4. Aug 10, 2026 · Catalog

    Updated

    Microsoft .NET Core and Visual Studio contain an unspecified vulnerability that allows for denial-of-service (DoS).

Sources

  • CISA KEVConfirmed exploitationCVE-2023-38180

    Microsoft .NET Core and Visual Studio contain an unspecified vulnerability that allows for denial-of-service (DoS).

    cisa.gov
  • CVE.orgVulnerability recordCVE-2023-38180

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2023-38180

    30-day exploitation probability 14.0%

    first.org
  • NIST NVDVulnerability recordCVE-2023-38180

    .NET and Visual Studio Denial of Service Vulnerability

    nvd.nist.gov
  • VulnCheck KEVConfirmed exploitationCVE-2023-38180

    Microsoft .NET Core and Visual Studio contain an unspecified vulnerability that allows for denial-of-service (DoS).

    vulncheck.com

References

Freshness

Last verified in this catalog Oct 17, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.