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Medium

Denial of service in ASP.NET Core

  • Disclosed: 24.05.2022
  • Updated: 11.10.2026 11:23

A denial of service vulnerability exists when ASP.NET Core improperly handles web requests, aka 'ASP.NET Core Denial of Service Vulnerability'.

Affected software

Click a technology to see all vulnerabilities affecting it.

PlatformPackageVulnerable versionsFixed in
.NET (NuGet) Microsoft.AspNetCore.All >= 2.1.0, < 2.1.15 2.1.15
.NET (NuGet) Microsoft.AspNetCore.App >= 3.1.0, < 3.1.1, >= 3.0.0, < 3.0.1, >= 2.1.0, < 2.1.15 3.1.1, 3.0.1, 2.1.15
.NET (NuGet) Microsoft.AspNetCore.App.Runtime.linux-arm >= 3.1.0, < 3.1.1 3.1.1
.NET (NuGet) Microsoft.AspNetCore.App.Runtime.linux-arm64 >= 3.1.0, < 3.1.1 3.1.1
.NET (NuGet) Microsoft.AspNetCore.App.Runtime.linux-musl-x64 >= 3.1.0, < 3.1.1 3.1.1
.NET (NuGet) Microsoft.AspNetCore.App.Runtime.linux-x64 >= 3.1.0, < 3.1.1 3.1.1
.NET (NuGet) Microsoft.AspNetCore.App.Runtime.osx-x64 >= 3.1.0, < 3.1.1 3.1.1
.NET (NuGet) Microsoft.AspNetCore.App.Runtime.win-arm >= 3.1.0, < 3.1.1 3.1.1
.NET (NuGet) Microsoft.AspNetCore.App.Runtime.win-x64 >= 3.1.0, < 3.1.1 3.1.1
.NET (NuGet) Microsoft.AspNetCore.App.Runtime.win-x86 >= 3.1.0, < 3.1.1 3.1.1
.NET (NuGet) Microsoft.AspNetCore.Http.Connections >= 1.0.0, < 1.0.15 1.0.15

References

CVSS score -
Weakness (CWE)
CWE-400
Platform
.NET (NuGet)
Package
Microsoft.AspNetCore.All, Microsoft.AspNetCore.App, Microsoft.AspNetCore.App.Runtime.linux-arm
Disclosed
24.05.2022
Updated
11.10.2026 11:23

Sources and licenses

OSV / GitHub Advisory Database - GHSA-23cv-jh4v-vffm - CC BY 4.0

Vulnerability history: Microsoft.AspNetCore.App.Runtime.linux-arm64

All published vulnerabilities of this package (.NET (NuGet)), newest first. Shows whether this is a one-off slip or a package that needs watching.

All (25) in the archive
Total entries
25
First → latest
05.2022 10.2026
Without a fix
0
Exploited in attacks
0

Severity breakdown

  • Critical 3
  • High 19
  • Medium 3

Disclosures per year

Severity:
  1. Denial of service in ASP.NET Core this entry
    Medium CVE-2020-0602 >= 3.1.0, < 3.1.1 3.1.1
  2. Microsoft Security Advisory CVE-2026-70186 - ASP.NET Core Denial of Service Vulnerability
    High · 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
  3. Microsoft Security Advisory CVE-2026-88092 - ASP.NET Core Security Feature Bypass Vulnerability
    Critical · 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
  4. Microsoft Security Advisory CVE-2026-56170 – .NET Denial of Service Vulnerability
    High · 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
  5. Microsoft Security Advisory CVE-2026-42899 – ASP.NET Core Denial of Service Vulnerability
    High · 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
  6. .NET Denial of Service Vulnerability
    High · 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
  7. Microsoft Security Advisory CVE-2025-55315: .NET Security Feature Bypass Vulnerability
    Critical · 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
  8. Microsoft Security Advisory CVE-2025-24070: .NET Elevation of Privilege Vulnerability
    High · 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
  9. Microsoft Security Advisory CVE-2024-38229 | .NET Remote Code Execution Vulnerability
    High · 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
  10. Microsoft Security Advisory CVE-2024-35264 | .NET Remote Code Execution Vulnerability
    Critical · 8.1 CVE-2024-35264 >= 8.0.0, < 8.0.7 8.0.7
  11. Microsoft Security Advisory CVE-2024-21386: .NET Denial of Service Vulnerability
    High · 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
  12. Microsoft Security Advisory CVE-2023-33170: .NET Security Feature Bypass Vulnerability
    High · 8.1 CVE-2023-33170 < 6.0.20, >= 7.0.0, < 7.0.9 6.0.20, 7.0.9
  13. .NET Denial of Service Vulnerability
    High · 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
  14. .NET Denial of Service Vulnerability
    High · 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
  15. .NET Denial of Service Vulnerability
    High · 7.5 CVE-2022-21986 >= 5.0.0, < 5.0.14, >= 6.0.0, < 6.0.2 5.0.14, 6.0.2
  16. .NET Denial of Service Vulnerability
    High · 7.5 CVE-2022-38013 >= 3.1.0, < 3.1.29, >= 5.0.0, < 6.0.9 3.1.29, 6.0.9
  17. .NET Denial of Service Vulnerability
    High · 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
  18. .NET Denial of Service Vulnerability
    High · 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
  19. ASP.NET Core and Visual Studio Denial of Service Vulnerability
    High · 7.5 CVE-2021-1723 >= 3.1.0, < 3.1.11, >= 5.0.0, < 5.0.2 3.1.11, 5.0.2
  20. Cookie parsing failure
    High · 7.5 CVE-2020-1045 >= 3.1.0, < 3.1.8 3.1.8
  21. ASP.NET Core Denial of Service Vulnerability
    High · 7.5 CVE-2020-1597 >= 3.1.0, < 3.1.7 3.1.7
Show more (2) Showing 21 of 23

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