🛡️ CVE-2022-29117 — .net

🟠 CVSS 8.0 — High ✅ No Known Exploit CWE-400 NVD
8.0
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

.NET Denial of Service Vulnerability

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 manipulate cookies and cause a Denial of Service.

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 versions | Patched versions |

|---------------------------------------------------|-------------------|------------------|

| Microsoft.Owin.Security.Cookies | <4.2.2 | 4.2.2 |

| Microsoft.Owin.Security | <4.2.2 | 4.2.2 |

| 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

| Affected packages | Affected versions | Patched versions |

|---------------------------------------------------|-------------------|------------------|

| Microsoft.Owin.Security.Cookies | < 4.2.2 | 4.2.2 |

| 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

| Affected packages | Affected versions | Patched versions |

|---------------------------------------------------|-------------------|------------------|

| Microsoft.Owin.Security.Cookies | <4.2.2 | 4.2.2 |

| 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

  • If you're using .NET Core 6.0, you should download and install Runtime 6.0.5 or SDK 6.0.105 (for Visual Studio 2022 v17.0) or SDK 6.0.203 (for Visual Studio 2022 v17.1

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality none, integrity none, availability high.

Weakness class

CVE-2022-29117 is classified as CWE-400: Uncontrolled Resource Consumption. A request can consume memory, CPU or storage without limit, exhausting capacity for everyone else.

Affected software

CVE-2022-29117 is recorded against 21 packages.

  • .net
  • .net-core
  • dotnet
  • dotnet-sdk
  • fedora
  • microsoft.aspnetcore.app.runtime.linux-arm (from 6.0.0 up to 6.0.5)
  • microsoft.aspnetcore.app.runtime.linux-arm64 (from 6.0.0 up to 6.0.5)
  • microsoft.aspnetcore.app.runtime.linux-musl-arm (from 6.0.0 up to 6.0.5)
  • microsoft.aspnetcore.app.runtime.linux-musl-arm64 (from 6.0.0 up to 6.0.5)
  • microsoft.aspnetcore.app.runtime.linux-musl-x64 (from 6.0.0 up to 6.0.5)
  • microsoft.aspnetcore.app.runtime.linux-x64 (from 6.0.0 up to 6.0.5)
  • microsoft.aspnetcore.app.runtime.osx-arm64 (from 6.0.0 up to 6.0.5)
  • microsoft.aspnetcore.app.runtime.osx-x64 (from 6.0.0 up to 6.0.5)
  • microsoft.aspnetcore.app.runtime.win-arm (from 6.0.0 up to 6.0.5)
  • microsoft.aspnetcore.app.runtime.win-arm64 (from 6.0.0 up to 6.0.5)
  • microsoft.aspnetcore.app.runtime.win-x64 (from 6.0.0 up to 6.0.5)
  • microsoft.aspnetcore.app.runtime.win-x86 (from 6.0.0 up to 6.0.5)
  • microsoft.owin (fixed in 4.2.2)
  • microsoft.owin.security.cookies (fixed in 4.2.2)
  • visual-studio-2019 (from 16.0 up to 16.0.11)
  • visual-studio-2022

Timeline and source

Published on 10 May 2022 and last revised on 17 June 2026. No public exploit is currently recorded for this entry. A vendor advisory or fix has been published. Record sourced from NVD.

References

msrc.microsoft.com
lists.fedoraproject.org
lists.fedoraproject.org
lists.fedoraproject.org
portal.msrc.microsoft.com

Details

Severity HIGH
CVSS Score 8.0
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE CWE-400
Public Exploit ✅ No
Source NVD
Published 2022-05-10
Updated 2026-08-12
Modified 2026-06-17

Affected Packages

Software From version Fixed in
.net — —
.net-core — —
dotnet — —
dotnet-sdk — —
fedora — —
microsoft.aspnetcore.app.runtime.linux-arm 6.0.0 6.0.5
microsoft.aspnetcore.app.runtime.linux-arm64 6.0.0 6.0.5
microsoft.aspnetcore.app.runtime.linux-musl-arm 6.0.0 6.0.5
microsoft.aspnetcore.app.runtime.linux-musl-arm64 6.0.0 6.0.5
microsoft.aspnetcore.app.runtime.linux-musl-x64 6.0.0 6.0.5
microsoft.aspnetcore.app.runtime.linux-x64 6.0.0 6.0.5
microsoft.aspnetcore.app.runtime.osx-arm64 6.0.0 6.0.5
microsoft.aspnetcore.app.runtime.osx-x64 6.0.0 6.0.5
microsoft.aspnetcore.app.runtime.win-arm 6.0.0 6.0.5
microsoft.aspnetcore.app.runtime.win-arm64 6.0.0 6.0.5
microsoft.aspnetcore.app.runtime.win-x64 6.0.0 6.0.5
microsoft.aspnetcore.app.runtime.win-x86 6.0.0 6.0.5
microsoft.owin — 4.2.2
microsoft.owin.security.cookies — 4.2.2
visual-studio-2019 16.0 16.0.11
visual-studio-2022 — —

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