High

ASP.NET Core Denial of Service Vulnerability

  • 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, < 2.1.21 2.1.21
.NET (NuGet) Microsoft.AspNetCore.App >= 2.1.0, < 2.1.21 2.1.21
.NET (NuGet) Microsoft.AspNetCore.App.Runtime.linux-arm >= 3.1.0, < 3.1.7 3.1.7
.NET (NuGet) Microsoft.AspNetCore.App.Runtime.linux-arm64 >= 3.1.0, < 3.1.7 3.1.7
.NET (NuGet) Microsoft.AspNetCore.App.Runtime.linux-musl-arm64 >= 3.1.0, < 3.1.7 3.1.7
.NET (NuGet) Microsoft.AspNetCore.App.Runtime.linux-musl-x64 >= 3.1.0, < 3.1.7 3.1.7
.NET (NuGet) Microsoft.AspNetCore.App.Runtime.linux-x64 >= 3.1.0, < 3.1.7 3.1.7
.NET (NuGet) Microsoft.AspNetCore.App.Runtime.osx-x64 >= 3.1.0, < 3.1.7 3.1.7
.NET (NuGet) Microsoft.AspNetCore.App.Runtime.win-arm >= 3.1.0, < 3.1.7 3.1.7
.NET (NuGet) Microsoft.AspNetCore.App.Runtime.win-arm64 >= 3.1.0, < 3.1.7 3.1.7
.NET (NuGet) Microsoft.AspNetCore.App.Runtime.win-x64 >= 3.1.0, < 3.1.7 3.1.7
.NET (NuGet) Microsoft.AspNetCore.App.Runtime.win-x86 >= 3.1.0, < 3.1.7 3.1.7

References

CVSS score 7.5/10
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE)
CWE-20
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-f8qx-mjcq-wfgx - CC BY 4.0

Vulnerability history: Microsoft.AspNetCore.All

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 (10) in the archive
Total entries
10
First → latest
10.2018 05.2022
Without a fix
0
Exploited in attacks
0

Severity breakdown

  • High 6
  • Medium 4

Disclosures per year

  1. 2018: 4
  2. 2019: 0
  3. 2020: 0
  4. 2021: 0
  5. 2022: 6
  6. 2023: 0
  7. 2024: 0
  8. 2025: 0
  9. 2026: 0
Severity:
  1. ASP.NET Core Denial of Service Vulnerability this entry
    High · 7.5 CVE-2020-1597 >= 2.1.0, < 2.1.21 2.1.21
  2. High CVE-2020-0603 >= 2.1.0, < 2.1.15 2.1.15
  3. High · 8.8 CVE-2017-11879 >= 2.0.0, < 2.0.3 2.0.3
  4. High · 7.5 CVE-2019-0564 >= 2.2.0, < 2.2.1, >= 2.1.0, < 2.1.7 2.2.1, 2.1.7
  5. High · 7.5 CVE-2018-8269 >= 2.1.0, < 2.1.13, >= 2.2.0, < 2.2.7 2.1.13, 2.2.7

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