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CVE-2023-38180

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

Microsoft .NET Core and Visual Studio
Open in ThreatlineRecord JSON
CVSS
7.5High
ExploitationExploited in the wildAdded to KEV 9 Aug 2023CISA KEV
Exploit odds (EPSS)14.0%Chance of exploitation activity in the next 30 days, higher than 96% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in6.0.21Also 7.0.10, 2.1.40 and 3 moreCVE List
Federal deadline30 Aug 2023Remediation due date for US federal agenciesCISA KEV
CISA required actionApply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. CISA KEV

What fixes it

  • 6.0.21.NET 6.0CVE List
  • 7.0.10.NET 7.0CVE List
  • 2.1.40ASP.NET Core 2.1CVE List
  • 17.2.18Microsoft Visual Studio 2022 version 17.2CVE List
  • 17.4.10Microsoft Visual Studio 2022 version 17.4CVE List
  • 17.6.6Microsoft Visual Studio 2022 version 17.6CVE List

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

Timeline

  1. 8 Aug 2023, 18:52 UTCPublishedCVE List
  2. 9 Aug 2023Added to CISA KEVCISA KEV

Description

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

Text from CVE List

Affected versions 6

  • .NET 6.0affected: 6.0.0 before 6.0.21CVE List
  • .NET 7.0affected: 7.0.0 before 7.0.10CVE List
  • ASP.NET Core 2.1affected: 2.0 before 2.1.40CVE List
  • Microsoft Visual Studio 2022 version 17.2affected: 17.2.0 before 17.2.18CVE List
  • Microsoft Visual Studio 2022 version 17.4affected: 17.4.0 before 17.4.10CVE List
  • Microsoft Visual Studio 2022 version 17.6affected: 17.6.0 before 17.6.6CVE List

References 6