CVE-2023-38180
Microsoft .NET Core and Visual Studio Denial-of-Service Vulnerability
Does this matter?
Known to be exploited in the wild (CISA KEV, CISA remediation deadline 30 August 2023). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.
Description
.NET and Visual Studio Denial of Service Vulnerability
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 14.13% probability · 97th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Listed 9 August 2023 · due 30 August 2023
- Weakness
- CWE-400
- Affected
- microsoft/.net · microsoft/asp.net core · microsoft/visual studio 2022 · fedoraproject/fedora
- Source
- secure@microsoft.com
EPSS 14.1% since 30 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
CISA notes
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2023-38180; https://nvd.nist.gov/vuln/detail/CVE-2023-38180
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-38180Patch, Vendor Advisory
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CL2L4WE5QRT7WEXANYXSKSU43APC5N2V/Mailing List
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NWVZFKTLNMNKPZ755EMRYIA6GHFOWGKY/Mailing List
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-38180Patch, Vendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-38180US Government Resource
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.