CVE-2023-38180
High 7.5 Exploited in the wild (KEV)
Confirmed active exploitation — CISA KEV catalog
- Name
- Microsoft .NET Core and Visual Studio Denial-of-Service Vulnerability
- Added to catalog
- Remediation due date (US federal)
- Required action
- Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Description
.NET and Visual Studio Denial of Service Vulnerability
Metrics
- CVSS 3.1
-
7.5 (HIGH)
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - EPSS — exploit probability
- 14% (percentile: 97) as of 2 November 2026
- CWE
- CWE-400
Affected products
microsoft: .net; microsoft: asp.net core; microsoft: visual studio 2022; fedoraproject: fedora
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-38180 PatchVendor Advisory
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-38180 PatchVendor Advisory
- https://lists.fedoraproject.org/archives/list/[email protected]… Mailing List
- https://lists.fedoraproject.org/archives/list/[email protected]… Mailing List
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023… US Government Resource