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CISA KEV lists vulnerabilities known to be exploited. FIRST EPSS estimates the likelihood of exploitation in the next 30 days. An unavailable score does not mean zero risk.
This view includes predictions for CVE identifiers explicitly listed in public NuGet advisories. Microsoft release pages have their own prediction coverage. Check source status for the scope and latest checks.
Listed in CISA KEV · added 9 Aug 2023 · Microsoft · .NET Core and Visual Studio
Microsoft .NET Core and Visual Studio contain an unspecified vulnerability that allows for denial-of-service (DoS).
FIRST EPSS: 14.13 % · percentile 96.62 % · scored 12 Nov 2026.
Saved 12 Nov 2026 18:18:51 UTC · View this risk record (JSON)
.NET and Visual Studio Denial of Service Vulnerability
Original source record · Cite this exact observation · Complete original publisher JSON
Source: cve-program · CVE Program Terms of Use. The publisher's wording is preserved. ChangeIntel groups the information and labels changes. The JSON record includes additional source fields.
CVSS 3.1 · 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C
.NET and Visual Studio Denial of Service Vulnerability
EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON.
datePublished: Aug 8, 2023, 6:52:31 PM
dateUpdated: Aug 10, 2026, 3:12:01 PM
ICSA-24-165-04: Siemens ST7 ScadaConnect
CVE-2022-40303 · CVE-2022-40304 · CVE-2023-0464 · CVE-2023-0465 · CVE-2023-0466 · CVE-2023-3446 · CVE-2023-5678 · CVE-2023-21808 · CVE-2023-24895 · CVE-2023-24897 · CVE-2023-24936 · CVE-2023-28260 · CVE-2023-28484 · CVE-2023-29331 · CVE-2023-29469 · CVE-2023-32032 · CVE-2023-33126 · CVE-2023-33127 · CVE-2023-33128 · CVE-2023-33135 · CVE-2023-33170 · CVE-2023-35390 · CVE-2023-35391 · CVE-2023-36038 · CVE-2023-36049 · CVE-2023-36435 · CVE-2023-36558 · CVE-2023-36792 · CVE-2023-36793 · CVE-2023-36794 · CVE-2023-36796 · CVE-2023-36799 · CVE-2023-38171 · CVE-2023-38178 · CVE-2023-38180 · CVE-2023-39615 · CVE-2023-44487
RHSA-2023:4639: Red Hat Security Advisory: .NET 6.0 security update
CVE-2023-35390 · CVE-2023-38180
RHSA-2023:4640: Red Hat Security Advisory: .NET 6.0 security update
CVE-2023-35390 · CVE-2023-38180
RHSA-2023:4641: Red Hat Security Advisory: rh-dotnet60-dotnet security, bug fix, and enhancement update
CVE-2023-35390 · CVE-2023-38180
RHSA-2023:4642: security update for dotnet7.0
CVE-2023-35390 · CVE-2023-38180
RHSA-2023:4643: security update for dotnet7.0
CVE-2023-35390 · CVE-2023-38180
msrc_CVE-2023-38180: .NET and Visual Studio Denial of Service Vulnerability
CVE-2023-38180
NCSC-2024-0246: Kwetsbaarheden verholpen in Siemens producten
CVE-2023-28319 · CVE-2023-28484 · CVE-2023-29331 · CVE-2023-29469 · CVE-2023-32032 · CVE-2023-33126 · CVE-2023-33127 · CVE-2023-33128 · CVE-2023-33135 · CVE-2023-33170 · CVE-2023-35390 · CVE-2023-35391 · CVE-2023-35788 · CVE-2023-35823 · CVE-2023-35824 · CVE-2023-35828 · CVE-2023-35829 · CVE-2023-36038 · CVE-2023-36049 · CVE-2023-36435 · CVE-2023-36558 · CVE-2023-36792 · CVE-2023-36793 · CVE-2023-36794 · CVE-2023-36796 · CVE-2023-36799 · CVE-2023-38171 · CVE-2023-38178 · CVE-2023-38180 · CVE-2023-38380 · CVE-2023-38533 · CVE-2023-39615 · CVE-2023-41910 · CVE-2023-44317 · CVE-2023-44318 · CVE-2023-44319 · CVE-2023-44373 · CVE-2023-44374 · CVE-2023-44487 · CVE-2023-49691 · CVE-2023-50763 · CVE-2023-52474 · CVE-2024-0775 · CVE-2024-31484 · CVE-2024-33500 · CVE-2024-35206 · CVE-2024-35207 · CVE-2024-35208 · CVE-2024-35209 · CVE-2024-35210 · CVE-2024-35211 · CVE-2024-35212 · CVE-2024-35292 · CVE-2024-35303 · CVE-2024-36266 · CVE-2021-47178 · CVE-2022-1015 · CVE-2022-2097 · CVE-2022-3435 · CVE-2022-3545 · CVE-2022-3623 · CVE-2022-3643 · CVE-2022-4304 · CVE-2022-4450 · CVE-2022-36323 · CVE-2022-39189 · CVE-2022-40225 · CVE-2022-40303 · CVE-2022-40304 · CVE-2022-41742 · CVE-2022-42328 · CVE-2022-42329 · CVE-2022-44792 · CVE-2022-44793 · CVE-2022-45886 · CVE-2022-45887 · CVE-2022-45919 · CVE-2022-46144 · CVE-2023-0160 · CVE-2023-0215 · CVE-2023-0286 · CVE-2023-0464 · CVE-2023-0465 · CVE-2023-0466 · CVE-2023-1017 · CVE-2023-2124 · CVE-2023-2269 · CVE-2023-3446 · CVE-2023-3817 · CVE-2023-5678 · CVE-2023-21255 · CVE-2023-21808 · CVE-2023-24895 · CVE-2023-24897 · CVE-2023-24936 · CVE-2023-26552 · CVE-2023-26553 · CVE-2023-26554 · CVE-2023-27321 · CVE-2023-28260
SSA-341067: SSA-341067: Multiple vulnerabilities in third-party components in ST7 ScadaConnect before V1.1
CVE-2022-40303 · CVE-2022-40304 · CVE-2023-0464 · CVE-2023-0465 · CVE-2023-0466 · CVE-2023-3446 · CVE-2023-5678 · CVE-2023-21808 · CVE-2023-24895 · CVE-2023-24897 · CVE-2023-24936 · CVE-2023-28260 · CVE-2023-28484 · CVE-2023-29331 · CVE-2023-29469 · CVE-2023-32032 · CVE-2023-33126 · CVE-2023-33127 · CVE-2023-33128 · CVE-2023-33135 · CVE-2023-33170 · CVE-2023-35390 · CVE-2023-35391 · CVE-2023-36038 · CVE-2023-36049 · CVE-2023-36435 · CVE-2023-36558 · CVE-2023-36792 · CVE-2023-36793 · CVE-2023-36794 · CVE-2023-36796 · CVE-2023-36799 · CVE-2023-38171 · CVE-2023-38178 · CVE-2023-38180 · CVE-2023-39615 · CVE-2023-44487
RHSA-2023:4644: security update for dotnet6.0
CVE-2023-35390 · CVE-2023-38180
RHSA-2023:4645: security update for dotnet6.0
CVE-2023-35390 · CVE-2023-38180
Original source record · Cite this exact observation · Complete original publisher JSON
Source: euvd · ENISA EUVD · source terms and attribution apply. The publisher's wording is preserved. ChangeIntel groups the information and labels changes. The JSON record includes additional source fields.
EUVD CVSS 3.1 · 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C
.NET and Visual Studio Denial of Service Vulnerability
NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON.
Source analysis status: Analyzed
Weakness classifications: NVD-CWE-noinfo · CWE-400
published: 2023-08-08T19:15:10.367
lastModified: 2026-11-10T13:10:00.363
The original JSON retains the logical configuration operators, exclusions and version bounds.
Original source record · Cite this exact observation · Complete original publisher JSON
Source: nvd · NIST NVD usage terms; underlying source attribution retained. The publisher's wording is preserved. ChangeIntel groups the information and labels changes. The JSON record includes additional source fields.
CVSS 3.1 · [email protected] · Secondary · 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
# Microsoft Security Advisory CVE-2023-38180: .NET Denial of Service Vulnerability ## <a name="executive-summary"></a>Executive summary Microsoft is releasing this security advisory to provide information about a vulnerability in ASP.NET Core 2.1, .NET 6.0, and .NET 7.0. This advisory also provides guidance on what developers can do to update their applications to remove this vulnerability. A vulnerability exists in Kestrel where, on detecting a potentially malicious client, Kestrel will sometimes fail to disconnect it, resulting in denial of service. ## Announcement Announcement for this issue can be found at https://github.com/dotnet/announcements/issues/269 ### <a name="mitigation-factors"></a>Mitigation factors If your application is running behind a reverse proxy, or Web Application Firewall, which has its own mitigations against HTTP based attacks this issue may be mitigated by the proxy or WAF ## <a name="affected-software"></a>Affected software * Any .NET 7.0 application running on .NET 7.0.8 or earlier. * Any .NET 6.0 application running on .NET 6.0.19 or earlier. If your application uses the following package versions, ensure you update to the latest version of .NET. ### <a name=".NET 7"></a>.NET 7 Package name | Affected version | Patched version ------------ | ---------------- | ------------------------- [Microsoft.AspNetCore.App.Runtime.win-arm64](https://www.nuget.org/packages/Microsoft.AspNetCore.App.Runtime.win-arm64) | >= 7.0.0, <= 7.0.9 | 7.0.10 [Microsoft.AspNetCore.App.Runtime.win-x64](https://www.nuget.org/packages/Microsoft.AspNetCore.App.Runtime.win-x64) | >= 7.0.0, <= 7.0.9 | 7.0.10 [Microsoft.AspNetCore.App.Runtime.win-x86](https://www.nuget.org/packages/Microsoft.AspNetCore.App.Runtime.win-x86) | >= 7.0.0, <= 7.0.9 | 7.0.10 ### <a name=".NET 6"></a>.NET 6 Package name | Affected version | Patched version ------------ | ---------------- | ------------------------- [Microsoft.AspNetCore.Server.Kestrel.Transport.Libuv](https://www.nuget.org/packages/Microsoft.AspNetCore.Server.Kestrel.Transport.Libuv) | >= 6.0.0, <= 6.0.20 | 6.0.21 [Microsoft.AspNetCore.App.Runtime.win-arm64](https://www.nuget.org/packages/Microsoft.AspNetCore.App.Runtime.win-arm64) | >= 6.0.0, <= 6.0.20 | 6.0.21 [Microsoft.AspNetCore.App.Runtime.win-x64](https://www.nuget.org/packages/Microsoft.AspNetCore.App.Runtime.win-x64) | >= 6.0.0, <= 6.0.20 | 6.0.21 [Microsoft.AspNetCore.App.Runtime.win-x86](https://www.nuget.org/packages/Microsoft.AspNetCore.App.Runtime.win-x86) | >= 6.0.0, <= 6.0.20 | 6.0.21 ### <a name="ASP.NET Core 2.1"></a>ASP.NET Core 2.1 Package name | Affected version | Patched version ------------ | ---------------- | ------------------------- [Microsoft.AspNetCore.Server.Kestrel.Transport.Libuv](https://www.nuget.org/packages/Microsoft.AspNetCore.Server.Kestrel.Transport.Libuv) | <= 2.1.39 | 2.1.40 [Microsoft.AspNetCore.Server.Kestrel.Transport.Sockets](https://www.nuget.org/packages/Microsoft.AspNetCore.Server.Kestrel.Transport.Sockets) | <= 2.1.39 | 2.1.40 ## Advisory FAQ ### <a name="how-affected"></a>How do I know if I am affected? If you have a runtime or SDK with a version listed, or an affected package listed in [affected software](#affected-software), you're exposed to the vulnerability. ### <a name="how-fix"></a>How do I fix the issue? * To fix the issue please install the latest version of .NET 6.0 or .NET 7.0. If you have installed one or more .NET SDKs through Visual Studio, Visual Studio will prompt you to update Visual Studio, which will also update your .NET SDKs. * If you are using one of the affected packages, please update to the patched version listed above. * If you have .NET 6.0 or greater installed, you can list the versions you have installed by running the `dotnet --info` command. You will see output like the following; ``` .NET Core SDK (reflecting any global.json): Version: 6.0.300 Commit: 8473146e7d Runtime Environment: OS Name: Windows OS Version: 10.0.18363 OS Platform: Windows RID: win10-x64 Base Path: C:\Program Files\dotnet\sdk\6.0.300\ Host (useful for support): Version: 6.0.5 Commit: 8473146e7d .NET Core SDKs installed: 6.0.300 [C:\Program Files\dotnet\sdk] .NET Core runtimes installed: Microsoft.AspNetCore.App 6.0.5 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App] Microsoft.NETCore.App 6.0.5 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App] Microsoft.WindowsDesktop.App 6.0.5 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App] To install additional .NET Core runtimes or SDKs: https://aka.ms/dotnet-download ``` * If you're using .NET 7.0, you should download and install Runtime 7.0.10 or SDK 7.0.110 (for Visual Studio 2022 v17.4) from https://dotnet.microsoft.com/download/dotnet-core/7.0. * If you're using .NET 6.0, you should download and install Runtime 6.0.21 or SDK 6.0.316 (for Visual Studio 2022 v17.2) from https://dotnet.microsoft.com/download/dotnet-core/6.0. .NET 6.0 and and .NET 7.0 updates are also available from Microsoft Update. To access this either type "Check for updates" in your Windows search, or open Settings, choose Update & Security and then click Check for Updates. Once you have installed the updated runtime or SDK, restart your apps for the update to take effect. Additionally, if you've deployed [self-contained applications](https://docs.microsoft.com/dotnet/core/deploying/#self-contained-deployments-scd) targeting any of the impacted versions, these applications are also vulnerable and must be recompiled and redeployed. ## Other Information ### Reporting Security Issues If you have found a potential security issue in .NET 6.0 or .NET 7.0, please email details to [email protected]. Reports may qualify for the Microsoft .NET Core & .NET 5 Bounty. Details of the Microsoft .NET Bounty Program including terms and conditions are at <https://aka.ms/corebounty>. ### Support You can ask questions about this issue on GitHub in the .NET GitHub organization. The main repos are located at https://github.com/dotnet/runtime and https://github.com/dotnet/aspnet/. The Announcements repo (https://github.com/dotnet/Announcements) will contain this bulletin as an issue and will include a link to a discussion issue. You can ask questions in the linked discussion issue. ### Disclaimer The information provided in this advisory is provided "as is" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply. ### External Links [CVE-2023-38180]( https://www.cve.org/CVERecord?id=CVE-2023-38180) ### Revisions V1.0 (August 08, 2023): Advisory published. _Version 1.0_ _Last Updated 2023-08-08_
Original source record · Cite this exact observation · Complete original publisher JSON
Source: osv · GitHub Advisory Database · CC-BY-4.0. The publisher's wording is preserved. ChangeIntel groups the information and labels changes. The JSON record includes additional source fields.
CVSS_V3 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:H
Publisher rating · HIGH