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.NET Denial of Service Vulnerability

  • Publicada: 30.08.2022
  • Actualizado: 11.10.2026 11:23

Microsoft is releasing this security advisory to provide information about a vulnerability in .NET 6.0, .NET 5.0 and .NET Core 3.1. This advisory also provides guidance on what developers can do to update their applications to remove this vulnerability.

A vulnerability exists in .NET 6.0, .NET 5.0 and .NET core 3.1 where a malicious client can can cause a denial of service when HTML forms are parsed.

Affected software

  • Any .NET 6.0 application running on .NET 6.0.4 or earlier.
  • Any .NET 5.0 application running .NET 5.0.16 or earlier.
  • Any .NET Core 3.1 application running on .NET Core 3.1.24 or earlier.

Affected packages

.NET Core 3.1

Package name Affected version Patched version
Microsoft.AspNetCore.App.Runtime.win-x64 >=3.0.0,3.1.24 3.1.25
Microsoft.AspNetCore.App.Runtime.linux-x64 >=3.0.0,3.1.24 3.1.25
Microsoft.AspNetCore.App.Runtime.win-x86 >=3.0.0,3.1.24 3.1.25
Microsoft.AspNetCore.App.Runtime.osx-x64 >=3.0.0,3.1.24 3.1.25
Microsoft.AspNetCore.App.Runtime.linux-musl-x64 >=3.0.0,3.1.24 3.1.25
Microsoft.AspNetCore.App.Runtime.linux-arm64 >=3.0.0,3.1.24 3.1.25
Microsoft.AspNetCore.App.Runtime.linux-arm >=3.0.0,3.1.24 3.1.25
Microsoft.AspNetCore.App.Runtime.win-arm64 >=3.0.0,3.1.24 3.1.25
Microsoft.AspNetCore.App.Runtime.win-arm >=3.0.0,3.1.24 3.1.25
Microsoft.AspNetCore.App.Runtime.linux-musl-arm64 >=3.0.0,3.1.24 3.1.25
Microsoft.AspNetCore.App.Runtime.linux-musl-arm >=3.0.0,3.1.24 3.1.25

.NET 5.0

Package name Affected version Patched version
Microsoft.AspNetCore.App.Runtime.win-x64 >=5.0.0,5.0.16 5.0.17
Microsoft.AspNetCore.App.Runtime.linux-x64 >=5.0.0,5.0.16 5.0.17
Microsoft.AspNetCore.App.Runtime.win-x86 >=5.0.0,5.0.16 5.0.17
Microsoft.AspNetCore.App.Runtime.osx-x64 >=5.0.0,5.0.16 5.0.17
Microsoft.AspNetCore.App.Runtime.linux-musl-x64 >=5.0.0,5.0.16 5.0.17
Microsoft.AspNetCore.App.Runtime.linux-arm64 >=5.0.0,5.0.16 5.0.17
Microsoft.AspNetCore.App.Runtime.linux-arm >=5.0.0,5.0.16 5.0.17
Microsoft.AspNetCore.App.Runtime.win-arm64 >=5.0.0,5.0.16 5.0.17
Microsoft.AspNetCore.App.Runtime.win-arm >=5.0.0,5.0.16 5.0.17
Microsoft.AspNetCore.App.Runtime.linux-musl-arm64 >=5.0.0,5.0.16 5.0.17
Microsoft.AspNetCore.App.Runtime.linux-musl-arm >=5.0.0,5.0.16 5.0.17

.NET 6.0

Package name Affected version Patched version
Microsoft.AspNetCore.App.Runtime.win-x64 >=6.0.0,6.0.4 6.0.5
Microsoft.AspNetCore.App.Runtime.linux-x64 >=6.0.0,6.0.4 6.0.5
Microsoft.AspNetCore.App.Runtime.win-x86 >=6.0.0,6.0.4 6.0.5
Microsoft.AspNetCore.App.Runtime.osx-x64 >=6.0.0,6.0.4 6.0.5
Microsoft.AspNetCore.App.Runtime.linux-musl-x64 >=6.0.0,6.0.4 6.0.5
Microsoft.AspNetCore.App.Runtime.linux-arm64 >=6.0.0,6.0.4 6.0.5
Microsoft.AspNetCore.App.Runtime.linux-arm >=6.0.0,6.0.4 6.0.5
Microsoft.AspNetCore.App.Runtime.win-arm64 >=6.0.0,6.0.4 6.0.5
Microsoft.AspNetCore.App.Runtime.win-arm >=6.0.0,6.0.4 6.0.5
Microsoft.AspNetCore.App.Runtime.osx-arm64 >=6.0.0,6.0.4 6.0.5
Microsoft.AspNetCore.App.Runtime.linux-musl-arm64 >=6.0.0,6.0.4 6.0.5
Microsoft.AspNetCore.App.Runtime.linux-musl-arm >=6.0.0,6.0.4 6.0.5

Patches

.NET 6.0, .NET 5.0 and .NET Core 3.1 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.

Other

Announcement for this issue can be found at https://github.com/dotnet/announcements/issues/222 An Issue for this can be found at https://github.com/dotnet/aspnetcore/issues/41609 MSRC details for this can be found at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-29145

Software afectado

Haz clic en una tecnología para ver todas sus vulnerabilidades.

PlataformaPaqueteVersiones vulnerablesCorregida en
.NET (NuGet) Microsoft.AspNetCore.App.Runtime.linux-arm >= 3.0.0, < 3.1.25, >= 5.0.0, < 5.0.17, >= 6.0.0, < 6.0.5 3.1.25, 5.0.17, 6.0.5
.NET (NuGet) Microsoft.AspNetCore.App.Runtime.linux-arm64 >= 3.0.0, < 3.1.25, >= 5.0.0, < 5.0.17, >= 6.0.0, < 6.0.5 3.1.25, 5.0.17, 6.0.5
.NET (NuGet) Microsoft.AspNetCore.App.Runtime.linux-musl-arm >= 3.0.0, < 3.1.25, >= 5.0.0, < 5.0.17, >= 6.0.0, < 6.0.5 3.1.25, 5.0.17, 6.0.5
.NET (NuGet) Microsoft.AspNetCore.App.Runtime.linux-musl-arm64 >= 3.0.0, < 3.1.25, >= 5.0.0, < 5.0.17, >= 6.0.0, < 6.0.5 3.1.25, 5.0.17, 6.0.5
.NET (NuGet) Microsoft.AspNetCore.App.Runtime.linux-musl-x64 >= 3.0.0, < 3.1.25, >= 5.0.0, < 5.0.17, >= 6.0.0, < 6.0.5 3.1.25, 5.0.17, 6.0.5
.NET (NuGet) Microsoft.AspNetCore.App.Runtime.linux-x64 >= 3.0.0, < 3.1.25, >= 5.0.0, < 5.0.17, >= 6.0.0, < 6.0.5 3.1.25, 5.0.17, 6.0.5
.NET (NuGet) Microsoft.AspNetCore.App.Runtime.osx-x64 >= 3.0.0, < 3.1.25, >= 5.0.0, < 5.0.17, >= 6.0.0, < 6.0.5 3.1.25, 5.0.17, 6.0.5
.NET (NuGet) Microsoft.AspNetCore.App.Runtime.win-arm >= 3.0.0, < 3.1.25, >= 5.0.0, < 5.0.17, >= 6.0.0, < 6.0.5 3.1.25, 5.0.17, 6.0.5
.NET (NuGet) Microsoft.AspNetCore.App.Runtime.win-arm64 >= 3.0.0, < 3.1.25, >= 5.0.0, < 5.0.17, >= 6.0.0, < 6.0.5 3.1.25, 5.0.17, 6.0.5
.NET (NuGet) Microsoft.AspNetCore.App.Runtime.win-x64 >= 3.0.0, < 3.1.25, >= 5.0.0, < 5.0.17, >= 6.0.0, < 6.0.5 3.1.25, 5.0.17, 6.0.5
.NET (NuGet) Microsoft.AspNetCore.App.Runtime.win-x86 >= 3.0.0, < 3.1.25, >= 5.0.0, < 5.0.17, >= 6.0.0, < 6.0.5 3.1.25, 5.0.17, 6.0.5

Referencias

Puntuación CVSS 7.5/10
Vector CVSS
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Debilidad (CWE)
CWE-400
Plataforma
.NET (NuGet)
Paquete
Microsoft.AspNetCore.App.Runtime.linux-arm, Microsoft.AspNetCore.App.Runtime.linux-arm64, Microsoft.AspNetCore.App.Runtime.linux-musl-arm
Publicada
30.08.2022
Actualizado
11.10.2026 11:23

Fuentes y licencias

OSV / GitHub Advisory Database - GHSA-fcg8-mg9g-6hc4 - CC BY 4.0

Historial de vulnerabilidades: Microsoft.AspNetCore.App.Runtime.osx-x64

Todas las vulnerabilidades publicadas de este paquete (.NET (NuGet)), de la más reciente a la más antigua. Muestra si es un fallo aislado o un paquete que hay que vigilar.

Todas (25) en el archivo
Entradas en total
25
Primera → última
05.2022 10.2026
Sin corrección
0
Explotada en ataques
0

Distribución por gravedad

  • Crítica 3
  • Alta 19
  • Media 3

Divulgaciones por año

Gravedad:
  1. Aviso de seguridad de Microsoft CVE-2026-70186 - Vulnerabilidad de denegación de servicio en ASP.NET Core
    Alta · 7.5 CVE-2026-70186 >= 8.0.0, < 8.0.32, >= 10.0.0, < 10.0.13, >= 9.0.0, < 9.0.21 8.0.32, 10.0.13, 9.0.21
  2. Aviso de seguridad de Microsoft CVE-2026-88092 - Vulnerabilidad de elusión de funciones de seguridad de ASP.NET Core
    Crítica · 9.4 CVE-2026-88092 >= 8.0.0, < 8.0.32, >= 10.0.0, < 10.0.13, >= 11.0.0-preview.1, < 11.0.0-rc.2, >= 9.0.0, < 9.0.21 8.0.32, 10.0.13, 11.0.0-rc.2, 9.0.21
  3. Microsoft Security Advisory CVE-2026-56170 – .NET Denial of Service Vulnerability
    Alta · 7.5 CVE-2026-56170 >= 10.0.0, < 10.0.6, >= 9.0.0, < 9.0.15, >= 8.0.0, < 8.0.26 10.0.6, 9.0.15, 8.0.26
  4. Microsoft Security Advisory CVE-2026-42899 – ASP.NET Core Denial of Service Vulnerability
    Alta · 7.5 CVE-2026-42899 >= 8.0.0, < 8.0.27, >= 9.0.0, < 9.0.16, >= 10.0.0, < 10.0.8 8.0.27, 9.0.16, 10.0.8
  5. .NET Denial of Service Vulnerability
    Alta · 7.5 CVE-2026-26130 >= 8.0.0, < 8.0.25, >= 9.0.0, < 9.0.14, >= 10.0.0, < 10.0.4 8.0.25, 9.0.14, 10.0.4
  6. Microsoft Security Advisory CVE-2025-55315: .NET Security Feature Bypass Vulnerability
    Crítica · 9.9 CVE-2025-55315 >= 10.0.0-rc.1.25451.107, < 10.0.0-rc.2.25502.107, >= 9.0.0, < 9.0.10, >= 8.0.0, < 8.0.21 10.0.0-rc.2.25502.107, 9.0.10, 8.0.21
  7. Microsoft Security Advisory CVE-2025-24070: .NET Elevation of Privilege Vulnerability
    Alta · 7.0 CVE-2025-24070 >= 9.0.0, < 9.0.3, >= 8.0.0, < 8.0.14, >= 6.0.0, <= 6.0.36 9.0.3, 8.0.14
  8. Microsoft Security Advisory CVE-2024-38229 | .NET Remote Code Execution Vulnerability
    Alta · 8.1 CVE-2024-38229 >= 9.0.0-preview.1.24081.5, < 9.0.0-rc.2.24474.3, >= 8.0.0, < 8.0.10 9.0.0-rc.2.24474.3, 8.0.10
  9. Microsoft Security Advisory CVE-2024-35264 | .NET Remote Code Execution Vulnerability
    Crítica · 8.1 CVE-2024-35264 >= 8.0.0, < 8.0.7 8.0.7
  10. Microsoft Security Advisory CVE-2024-21386: .NET Denial of Service Vulnerability
    Alta · 7.5 CVE-2024-21386 < 6.0.27, >= 7.0.0, < 7.0.16, >= 8.0.0, < 8.0.2 6.0.27, 7.0.16, 8.0.2
  11. Microsoft Security Advisory CVE-2023-33170: .NET Security Feature Bypass Vulnerability
    Alta · 8.1 CVE-2023-33170 < 6.0.20, >= 7.0.0, < 7.0.9 6.0.20, 7.0.9
  12. .NET Denial of Service Vulnerability
    Alta · 7.5 CVE-2022-23267 >= 3.0.0, < 3.1.25, >= 5.0.0, < 5.0.17, >= 6.0.0, < 6.0.5 3.1.25, 5.0.17, 6.0.5
  13. .NET Denial of Service Vulnerability
    Alta · 7.5 CVE-2022-24464 >= 3.0.0, < 3.1.23, >= 5.0.0, < 5.0.15, >= 6.0.0, < 6.0.3 3.1.23, 5.0.15, 6.0.3
  14. .NET Denial of Service Vulnerability
    Alta · 7.5 CVE-2022-21986 >= 5.0.0, < 5.0.14, >= 6.0.0, < 6.0.2 5.0.14, 6.0.2
  15. .NET Denial of Service Vulnerability
    Alta · 7.5 CVE-2022-38013 >= 3.1.0, < 3.1.29, >= 5.0.0, < 6.0.9 3.1.29, 6.0.9
  16. .NET Denial of Service Vulnerability esta entrada
    Alta · 7.5 CVE-2022-29145 >= 3.0.0, < 3.1.25, >= 5.0.0, < 5.0.17, >= 6.0.0, < 6.0.5 3.1.25, 5.0.17, 6.0.5
  17. .NET Denial of Service Vulnerability
    Alta · 7.5 CVE-2022-29117 >= 3.0.0, < 3.1.25, >= 5.0.0, < 5.0.17, >= 6.0.0, < 6.0.5 3.1.25, 5.0.17, 6.0.5
  18. ASP.NET Core and Visual Studio Denial of Service Vulnerability
    Alta · 7.5 CVE-2021-1723 >= 3.1.0, < 3.1.11, >= 5.0.0, < 5.0.2 3.1.11, 5.0.2
  19. Cookie parsing failure
    Alta · 7.5 CVE-2020-1045 >= 3.1.0, < 3.1.8 3.1.8
  20. ASP.NET Core Denial of Service Vulnerability
    Alta · 7.5 CVE-2020-1597 >= 3.1.0, < 3.1.7 3.1.7
  21. ASP.NET Core Denial of Service Vulnerability
    Alta · 7.5 CVE-2020-1161 >= 3.1.0, < 3.1.4 3.1.4
  22. Remote code execution in ASP.NET Core
    Alta CVE-2020-0603 >= 3.1.0, < 3.1.1 3.1.1

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