CVE-2022-21986

.NET Denial of Service Vulnerability

7.5 HighFix available

.NET Denial of Service Vulnerability

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: None
Integrity: None
Availability: High

Exploit likelihood

3.74%Up 2.9 points since Feb 10, 2022

What each source reports

CVE List Score used 7.5

.NET Denial of Service Vulnerability

.NET Denial of Service Vulnerability

Record: CVE-2022-21986
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C
Updated: 2026-11-02

EUVDEUVD-2022-7179 7.5

.NET Denial of Service Vulnerability

Record: EUVD-2022-7179
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C
Updated: 2026-11-02

GitHub AdvisoriesGHSA-x459-p2rx-f8ff 7.5

.NET Denial of Service Vulnerability

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

A Denial of Service vulnerability exists in .NET 6.0 and .NET 5.0 when the Kestrel web server processes certain HTTP/2 and HTTP/3 requests.

Affected Software

Any .NET 6.0 application running on .NET 6.0.1 or lower.
Any .NET 5.0 application running on .NET 5.0.13 or lower.

Patches

To fix the issue, please install the latest version of .NET 6.0 or .NET 5.0. 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're using .NET Core 6.0, you should download and install Runtime 6.0.2 or SDK 6.0.102 (for Visual Studio 2022 v17.1) from https://dotnet.microsoft.com/download/dotnet-core/6.0.
If you're using .NET 5.0, you should download and install Runtime 5.0.14 or SDK 5.0.114 (for Visual Studio 2019 v16.8) or SDK 5.0.405 (for Visual Studio 2011 v16.11) from https://dotnet.microsoft.com/download/dotnet-core/5.0.

.NET 6.0 and .NET 5.0 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.

Other Details

Announcement for this issue can be found at https://github.com/dotnet/announcements/issues/207
An Issue for this can be found at https://github.com/dotnet/aspnetcore/issues/40072
MSRC details for this can be found at https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2022-21986

Record: GHSA-x459-p2rx-f8ff
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated: 2026-11-02

NVD 7.5

.NET Denial of Service Vulnerability

Record: CVE-2022-21986
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0: 4.3 MediumAV:N/AC:M/Au:N/C:N/I:N/A:P
Updated: 2026-11-02

OSV 7.5

.NET Denial of Service Vulnerability

Record: CVE-2022-21986
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated: 2026-11-02

OSVGHSA-x459-p2rx-f8ff 7.5

.NET Denial of Service Vulnerability

A Denial of Service vulnerability exists in .NET 6.0 and .NET 5.0 when the Kestrel web server processes certain HTTP/2 and HTTP/3 requests.

Affected Software

Any .NET 6.0 application running on .NET 6.0.1 or lower.
Any .NET 5.0 application running on .NET 5.0.13 or lower.

Patches

If you're using .NET Core 6.0, you should download and install Runtime 6.0.2 or SDK 6.0.102 (for Visual Studio 2022 v17.1) from https://dotnet.microsoft.com/download/dotnet-core/6.0.
If you're using .NET 5.0, you should download and install Runtime 5.0.14 or SDK 5.0.114 (for Visual Studio 2019 v16.8) or SDK 5.0.405 (for Visual Studio 2011 v16.11) from https://dotnet.microsoft.com/download/dotnet-core/5.0.

Other Details

Announcement for this issue can be found at https://github.com/dotnet/announcements/issues/207
An Issue for this can be found at https://github.com/dotnet/aspnetcore/issues/40072
MSRC details for this can be found at https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2022-21986

Record: GHSA-x459-p2rx-f8ff
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated: 2026-11-02

Show 9 moreShow less

OSVRHSA-2022:0495 7.5

Red Hat Security Advisory: .NET 5.0 security and bugfix update

Record: RHSA-2022:0495
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated: 2026-11-02

OSVRHSA-2022:0496 7.5

Red Hat Security Advisory: .NET 6.0 security and bugfix update

Record: RHSA-2022:0496
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated: 2026-11-02

OSVRHSA-2022:0499 7.5

Red Hat Security Advisory: .NET 5.0 on RHEL 7 security and bugfix update

Record: RHSA-2022:0499
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated: 2026-11-02

OSVRHSA-2022:0500 7.5

Red Hat Security Advisory: .NET 6.0 on RHEL 7 security and bugfix update

Record: RHSA-2022:0500
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated: 2026-11-02

OSVRLSA-2022:0495 7.5

Important: .NET 5.0 security and bugfix update

.NET is a managed-software framework. It implements a subset of the .NET framework APIs and several new APIs, and it includes a CLR implementation.

New versions of .NET that address a security vulnerability are now available. The updated versions are .NET SDK 5.0.211 and .NET Runtime 5.0.14.

Security Fix(es):

dotnet: ASP.NET Core Krestel HTTP headers pooling denial of service (CVE-2022-219862)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Record: RLSA-2022:0495
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated: 2026-11-02

OSVRLSA-2022:0496 7.5

Important: .NET 6.0 security and bugfix update

.NET is a managed-software framework. It implements a subset of the .NET framework APIs and several new APIs, and it includes a CLR implementation.

New versions of .NET that address a security vulnerability are now available. The updated versions are .NET SDK 6.0.102 and .NET Runtime 6.0.2.

Security Fix(es):

dotnet: ASP.NET Core Krestel HTTP headers pooling denial of service (CVE-2022-219862)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Record: RLSA-2022:0496
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated: 2026-11-02

OSVALSA-2022:0496 No score

Important: .NET 6.0 security and bugfix update

.NET is a managed-software framework. It implements a subset of the .NET framework APIs and several new APIs, and it includes a CLR implementation.

New versions of .NET that address a security vulnerability are now available. The updated versions are .NET SDK 6.0.102 and .NET Runtime 6.0.2.

Security Fix(es):

dotnet: ASP.NET Core Krestel HTTP headers pooling denial of service (CVE-2022-219862)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Record: ALSA-2022:0496
Updated: 2026-11-02

OSVBIT-dotnet-2022-21986 No score

.NET Denial of Service Vulnerability

.NET Denial of Service Vulnerability

Record: BIT-dotnet-2022-21986
Updated: 2026-11-02

OSVBIT-dotnet-sdk-2022-21986 No score

.NET Denial of Service Vulnerability

.NET Denial of Service Vulnerability

Record: BIT-dotnet-sdk-2022-21986
Updated: 2026-11-02

Affected products

Affected packages

Affected packages
Package	Affected	Fixed
`Microsoft.AspNetCore.App.Runtime.win-x64` NuGet	5.0.0 up to 5.0.14	5.0.14
`Microsoft.AspNetCore.App.Runtime.linux-x64` NuGet	5.0.0 up to 5.0.14	5.0.14
`Microsoft.AspNetCore.App.Runtime.win-x86` NuGet	5.0.0 up to 5.0.14	5.0.14
`Microsoft.AspNetCore.App.Runtime.osx-x64` NuGet	5.0.0 up to 5.0.14	5.0.14
`Microsoft.AspNetCore.App.Runtime.linux-musl-x64` NuGet	5.0.0 up to 5.0.14	5.0.14
`Microsoft.AspNetCore.App.Runtime.linux-arm64` NuGet	5.0.0 up to 5.0.14	5.0.14
`Microsoft.AspNetCore.App.Runtime.linux-arm` NuGet	5.0.0 up to 5.0.14	5.0.14
`Microsoft.AspNetCore.App.Runtime.win-arm64` NuGet	5.0.0 up to 5.0.14	5.0.14
`Microsoft.AspNetCore.App.Runtime.win-arm` NuGet	5.0.0 up to 5.0.14	5.0.14
`Microsoft.AspNetCore.App.Runtime.linux-musl-arm64` NuGet	5.0.0 up to 5.0.14	5.0.14

Show 118 moreShow less

Affected packages
Package	Affected	Fixed
`Microsoft.AspNetCore.App.Runtime.linux-musl-arm` NuGet	5.0.0 up to 5.0.14	5.0.14
`Microsoft.AspNetCore.App.Runtime.linux-arm` NuGet	6.0.0 up to 6.0.2	6.0.2
`Microsoft.AspNetCore.App.Runtime.linux-arm64` NuGet	6.0.0 up to 6.0.2	6.0.2
`Microsoft.AspNetCore.App.Runtime.linux-musl-arm` NuGet	6.0.0 up to 6.0.2	6.0.2
`Microsoft.AspNetCore.App.Runtime.linux-musl-arm64` NuGet	6.0.0 up to 6.0.2	6.0.2
`Microsoft.AspNetCore.App.Runtime.linux-musl-x64` NuGet	6.0.0 up to 6.0.2	6.0.2
`Microsoft.AspNetCore.App.Runtime.linux-x64` NuGet	6.0.0 up to 6.0.2	6.0.2
`Microsoft.AspNetCore.App.Runtime.osx-arm64` NuGet	6.0.0 up to 6.0.2	6.0.2
`Microsoft.AspNetCore.App.Runtime.osx-x64` NuGet	6.0.0 up to 6.0.2	6.0.2
`Microsoft.AspNetCore.App.Runtime.win-arm` NuGet	6.0.0 up to 6.0.2	6.0.2
`Microsoft.AspNetCore.App.Runtime.win-arm64` NuGet	6.0.0 up to 6.0.2	6.0.2
`Microsoft.AspNetCore.App.Runtime.win-x64` NuGet	6.0.0 up to 6.0.2	6.0.2
`Microsoft.AspNetCore.App.Runtime.win-x86` NuGet	6.0.0 up to 6.0.2	6.0.2
`aspnetcore-runtime-6.0` AlmaLinux:8 From an advisory covering 2 CVEs	before 6.0.2-1.el8_5	6.0.2-1.el8_5
`aspnetcore-targeting-pack-6.0` AlmaLinux:8 From an advisory covering 2 CVEs	before 6.0.2-1.el8_5	6.0.2-1.el8_5
`dotnet` AlmaLinux:8 From an advisory covering 2 CVEs	before 6.0.102-1.el8_5	6.0.102-1.el8_5
`dotnet-apphost-pack-6.0` AlmaLinux:8 From an advisory covering 2 CVEs	before 6.0.2-1.el8_5	6.0.2-1.el8_5
`dotnet-host` AlmaLinux:8 From an advisory covering 2 CVEs	before 6.0.2-1.el8_5	6.0.2-1.el8_5
`dotnet-hostfxr-6.0` AlmaLinux:8 From an advisory covering 2 CVEs	before 6.0.2-1.el8_5	6.0.2-1.el8_5
`dotnet-runtime-6.0` AlmaLinux:8 From an advisory covering 2 CVEs	before 6.0.2-1.el8_5	6.0.2-1.el8_5
`dotnet-sdk-6.0` AlmaLinux:8 From an advisory covering 2 CVEs	before 6.0.102-1.el8_5	6.0.102-1.el8_5
`dotnet-targeting-pack-6.0` AlmaLinux:8 From an advisory covering 2 CVEs	before 6.0.2-1.el8_5	6.0.2-1.el8_5
`dotnet-templates-6.0` AlmaLinux:8 From an advisory covering 2 CVEs	before 6.0.102-1.el8_5	6.0.102-1.el8_5
`netstandard-targeting-pack-2.1` AlmaLinux:8 From an advisory covering 2 CVEs	before 6.0.102-1.el8_5	6.0.102-1.el8_5
`dotnet` Bitnami	5.0.0 up to 5.0.14, 6.0.0 up to 6.0.2	5.0.146.0.2
`dotnet-sdk` Bitnami	5.0.0 up to 5.0.14, 6.0.0 up to 6.0.2	5.0.146.0.2
`Microsoft.AspNetCore.App.Runtime.win-x64` NuGet	5.0.0 up to 5.0.14, plus listed versions 5.0.15.0.105.0.115.0.125.0.13 Show 8 moreShow less 5.0.25.0.35.0.45.0.55.0.65.0.75.0.85.0.9	5.0.14
`Microsoft.AspNetCore.App.Runtime.linux-x64` NuGet	5.0.0 up to 5.0.14, plus listed versions 5.0.15.0.105.0.115.0.125.0.13 Show 8 moreShow less 5.0.25.0.35.0.45.0.55.0.65.0.75.0.85.0.9	5.0.14
`Microsoft.AspNetCore.App.Runtime.win-x86` NuGet	5.0.0 up to 5.0.14, plus listed versions 5.0.15.0.105.0.115.0.125.0.13 Show 8 moreShow less 5.0.25.0.35.0.45.0.55.0.65.0.75.0.85.0.9	5.0.14
`Microsoft.AspNetCore.App.Runtime.osx-x64` NuGet	5.0.0 up to 5.0.14, plus listed versions 5.0.15.0.105.0.115.0.125.0.13 Show 8 moreShow less 5.0.25.0.35.0.45.0.55.0.65.0.75.0.85.0.9	5.0.14
`Microsoft.AspNetCore.App.Runtime.linux-musl-x64` NuGet	5.0.0 up to 5.0.14, plus listed versions 5.0.15.0.105.0.115.0.125.0.13 Show 8 moreShow less 5.0.25.0.35.0.45.0.55.0.65.0.75.0.85.0.9	5.0.14
`Microsoft.AspNetCore.App.Runtime.linux-arm64` NuGet	5.0.0 up to 5.0.14, plus listed versions 5.0.15.0.105.0.115.0.125.0.13 Show 8 moreShow less 5.0.25.0.35.0.45.0.55.0.65.0.75.0.85.0.9	5.0.14
`Microsoft.AspNetCore.App.Runtime.linux-arm` NuGet	5.0.0 up to 5.0.14, plus listed versions 5.0.15.0.105.0.115.0.125.0.13 Show 8 moreShow less 5.0.25.0.35.0.45.0.55.0.65.0.75.0.85.0.9	5.0.14
`Microsoft.AspNetCore.App.Runtime.win-arm64` NuGet	5.0.0 up to 5.0.14, plus listed versions 5.0.15.0.105.0.115.0.125.0.13 Show 8 moreShow less 5.0.25.0.35.0.45.0.55.0.65.0.75.0.85.0.9	5.0.14
`Microsoft.AspNetCore.App.Runtime.win-arm` NuGet	5.0.0 up to 5.0.14, plus listed versions 5.0.15.0.105.0.115.0.125.0.13 Show 8 moreShow less 5.0.25.0.35.0.45.0.55.0.65.0.75.0.85.0.9	5.0.14
`Microsoft.AspNetCore.App.Runtime.linux-musl-arm64` NuGet	5.0.0 up to 5.0.14, plus listed versions 5.0.15.0.105.0.115.0.125.0.13 Show 8 moreShow less 5.0.25.0.35.0.45.0.55.0.65.0.75.0.85.0.9	5.0.14
`Microsoft.AspNetCore.App.Runtime.linux-musl-arm` NuGet	5.0.0 up to 5.0.14, plus listed versions 5.0.15.0.105.0.115.0.125.0.13 Show 8 moreShow less 5.0.25.0.35.0.45.0.55.0.65.0.75.0.85.0.9	5.0.14
`Microsoft.AspNetCore.App.Runtime.linux-arm` NuGet	6.0.0 up to 6.0.2, plus listed versions 6.0.1	6.0.2
`Microsoft.AspNetCore.App.Runtime.linux-arm64` NuGet	6.0.0 up to 6.0.2, plus listed versions 6.0.1	6.0.2
`Microsoft.AspNetCore.App.Runtime.linux-musl-arm` NuGet	6.0.0 up to 6.0.2, plus listed versions 6.0.1	6.0.2
`Microsoft.AspNetCore.App.Runtime.linux-musl-arm64` NuGet	6.0.0 up to 6.0.2, plus listed versions 6.0.1	6.0.2
`Microsoft.AspNetCore.App.Runtime.linux-musl-x64` NuGet	6.0.0 up to 6.0.2, plus listed versions 6.0.1	6.0.2
`Microsoft.AspNetCore.App.Runtime.linux-x64` NuGet	6.0.0 up to 6.0.2, plus listed versions 6.0.1	6.0.2
`Microsoft.AspNetCore.App.Runtime.osx-arm64` NuGet	6.0.0 up to 6.0.2, plus listed versions 6.0.1	6.0.2
`Microsoft.AspNetCore.App.Runtime.osx-x64` NuGet	6.0.0 up to 6.0.2, plus listed versions 6.0.1	6.0.2
`Microsoft.AspNetCore.App.Runtime.win-arm` NuGet	6.0.0 up to 6.0.2, plus listed versions 6.0.1	6.0.2
`Microsoft.AspNetCore.App.Runtime.win-arm64` NuGet	6.0.0 up to 6.0.2, plus listed versions 6.0.1	6.0.2
`Microsoft.AspNetCore.App.Runtime.win-x64` NuGet	6.0.0 up to 6.0.2, plus listed versions 6.0.1	6.0.2
`Microsoft.AspNetCore.App.Runtime.win-x86` NuGet	6.0.0 up to 6.0.2, plus listed versions 6.0.1	6.0.2
`aspnetcore-runtime-5.0` Red Hat:enterprise_linux:8::appstream	before 0:5.0.14-1.el8_5	0:5.0.14-1.el8_5
`aspnetcore-targeting-pack-5.0` Red Hat:enterprise_linux:8::appstream	before 0:5.0.14-1.el8_5	0:5.0.14-1.el8_5
`dotnet-apphost-pack-5.0` Red Hat:enterprise_linux:8::appstream	before 0:5.0.14-1.el8_5	0:5.0.14-1.el8_5
`dotnet-apphost-pack-5.0-debuginfo` Red Hat:enterprise_linux:8::appstream	before 0:5.0.14-1.el8_5	0:5.0.14-1.el8_5
`dotnet-hostfxr-5.0` Red Hat:enterprise_linux:8::appstream	before 0:5.0.14-1.el8_5	0:5.0.14-1.el8_5
`dotnet-hostfxr-5.0-debuginfo` Red Hat:enterprise_linux:8::appstream	before 0:5.0.14-1.el8_5	0:5.0.14-1.el8_5
`dotnet-runtime-5.0` Red Hat:enterprise_linux:8::appstream	before 0:5.0.14-1.el8_5	0:5.0.14-1.el8_5
`dotnet-runtime-5.0-debuginfo` Red Hat:enterprise_linux:8::appstream	before 0:5.0.14-1.el8_5	0:5.0.14-1.el8_5
`dotnet-sdk-5.0` Red Hat:enterprise_linux:8::appstream	before 0:5.0.211-1.el8_5	0:5.0.211-1.el8_5
`dotnet-sdk-5.0-debuginfo` Red Hat:enterprise_linux:8::appstream	before 0:5.0.211-1.el8_5	0:5.0.211-1.el8_5
`dotnet-targeting-pack-5.0` Red Hat:enterprise_linux:8::appstream	before 0:5.0.14-1.el8_5	0:5.0.14-1.el8_5
`dotnet-templates-5.0` Red Hat:enterprise_linux:8::appstream	before 0:5.0.211-1.el8_5	0:5.0.211-1.el8_5
`dotnet5.0` Red Hat:enterprise_linux:8::appstream	before 0:5.0.211-1.el8_5	0:5.0.211-1.el8_5
`dotnet5.0-debuginfo` Red Hat:enterprise_linux:8::appstream	before 0:5.0.211-1.el8_5	0:5.0.211-1.el8_5
`dotnet5.0-debugsource` Red Hat:enterprise_linux:8::appstream	before 0:5.0.211-1.el8_5	0:5.0.211-1.el8_5
`dotnet-apphost-pack-5.0-debuginfo` Red Hat:enterprise_linux:8::crb	before 0:5.0.14-1.el8_5	0:5.0.14-1.el8_5
`dotnet-hostfxr-5.0-debuginfo` Red Hat:enterprise_linux:8::crb	before 0:5.0.14-1.el8_5	0:5.0.14-1.el8_5
`dotnet-runtime-5.0-debuginfo` Red Hat:enterprise_linux:8::crb	before 0:5.0.14-1.el8_5	0:5.0.14-1.el8_5
`dotnet-sdk-5.0-debuginfo` Red Hat:enterprise_linux:8::crb	before 0:5.0.211-1.el8_5	0:5.0.211-1.el8_5
`dotnet-sdk-5.0-source-built-artifacts` Red Hat:enterprise_linux:8::crb	before 0:5.0.211-1.el8_5	0:5.0.211-1.el8_5
`dotnet5.0-debuginfo` Red Hat:enterprise_linux:8::crb	before 0:5.0.211-1.el8_5	0:5.0.211-1.el8_5
`dotnet5.0-debugsource` Red Hat:enterprise_linux:8::crb	before 0:5.0.211-1.el8_5	0:5.0.211-1.el8_5
`aspnetcore-runtime-6.0` Red Hat:enterprise_linux:8::appstream	before 0:6.0.2-1.el8_5	0:6.0.2-1.el8_5
`aspnetcore-targeting-pack-6.0` Red Hat:enterprise_linux:8::appstream	before 0:6.0.2-1.el8_5	0:6.0.2-1.el8_5
`dotnet` Red Hat:enterprise_linux:8::appstream	before 0:6.0.102-1.el8_5	0:6.0.102-1.el8_5
`dotnet-apphost-pack-6.0` Red Hat:enterprise_linux:8::appstream	before 0:6.0.2-1.el8_5	0:6.0.2-1.el8_5
`dotnet-apphost-pack-6.0-debuginfo` Red Hat:enterprise_linux:8::appstream	before 0:6.0.2-1.el8_5	0:6.0.2-1.el8_5
`dotnet-host` Red Hat:enterprise_linux:8::appstream	before 0:6.0.2-1.el8_5	0:6.0.2-1.el8_5
`dotnet-host-debuginfo` Red Hat:enterprise_linux:8::appstream	before 0:6.0.2-1.el8_5	0:6.0.2-1.el8_5
`dotnet-hostfxr-6.0` Red Hat:enterprise_linux:8::appstream	before 0:6.0.2-1.el8_5	0:6.0.2-1.el8_5
`dotnet-hostfxr-6.0-debuginfo` Red Hat:enterprise_linux:8::appstream	before 0:6.0.2-1.el8_5	0:6.0.2-1.el8_5
`dotnet-runtime-6.0` Red Hat:enterprise_linux:8::appstream	before 0:6.0.2-1.el8_5	0:6.0.2-1.el8_5
`dotnet-runtime-6.0-debuginfo` Red Hat:enterprise_linux:8::appstream	before 0:6.0.2-1.el8_5	0:6.0.2-1.el8_5
`dotnet-sdk-6.0` Red Hat:enterprise_linux:8::appstream	before 0:6.0.102-1.el8_5	0:6.0.102-1.el8_5
`dotnet-sdk-6.0-debuginfo` Red Hat:enterprise_linux:8::appstream	before 0:6.0.102-1.el8_5	0:6.0.102-1.el8_5
`dotnet-targeting-pack-6.0` Red Hat:enterprise_linux:8::appstream	before 0:6.0.2-1.el8_5	0:6.0.2-1.el8_5
`dotnet-templates-6.0` Red Hat:enterprise_linux:8::appstream	before 0:6.0.102-1.el8_5	0:6.0.102-1.el8_5
`dotnet6.0` Red Hat:enterprise_linux:8::appstream	before 0:6.0.102-1.el8_5	0:6.0.102-1.el8_5
`dotnet6.0-debuginfo` Red Hat:enterprise_linux:8::appstream	before 0:6.0.102-1.el8_5	0:6.0.102-1.el8_5
`dotnet6.0-debugsource` Red Hat:enterprise_linux:8::appstream	before 0:6.0.102-1.el8_5	0:6.0.102-1.el8_5
`netstandard-targeting-pack-2.1` Red Hat:enterprise_linux:8::appstream	before 0:6.0.102-1.el8_5	0:6.0.102-1.el8_5
`rh-dotnet50-aspnetcore-runtime-5.0` Red Hat:rhel_dotnet:5.0::el7	before 0:5.0.14-1.el7_9	0:5.0.14-1.el7_9
`rh-dotnet50-aspnetcore-targeting-pack-5.0` Red Hat:rhel_dotnet:5.0::el7	before 0:5.0.14-1.el7_9	0:5.0.14-1.el7_9
`rh-dotnet50-dotnet` Red Hat:rhel_dotnet:5.0::el7	before 0:5.0.211-1.el7_9	0:5.0.211-1.el7_9
`rh-dotnet50-dotnet-apphost-pack-5.0` Red Hat:rhel_dotnet:5.0::el7	before 0:5.0.14-1.el7_9	0:5.0.14-1.el7_9
`rh-dotnet50-dotnet-debuginfo` Red Hat:rhel_dotnet:5.0::el7	before 0:5.0.211-1.el7_9	0:5.0.211-1.el7_9
`rh-dotnet50-dotnet-host` Red Hat:rhel_dotnet:5.0::el7	before 0:5.0.14-1.el7_9	0:5.0.14-1.el7_9
`rh-dotnet50-dotnet-hostfxr-5.0` Red Hat:rhel_dotnet:5.0::el7	before 0:5.0.14-1.el7_9	0:5.0.14-1.el7_9
`rh-dotnet50-dotnet-runtime-5.0` Red Hat:rhel_dotnet:5.0::el7	before 0:5.0.14-1.el7_9	0:5.0.14-1.el7_9
`rh-dotnet50-dotnet-sdk-5.0` Red Hat:rhel_dotnet:5.0::el7	before 0:5.0.211-1.el7_9	0:5.0.211-1.el7_9
`rh-dotnet50-dotnet-sdk-5.0-source-built-artifacts` Red Hat:rhel_dotnet:5.0::el7	before 0:5.0.211-1.el7_9	0:5.0.211-1.el7_9
`rh-dotnet50-dotnet-targeting-pack-5.0` Red Hat:rhel_dotnet:5.0::el7	before 0:5.0.14-1.el7_9	0:5.0.14-1.el7_9
`rh-dotnet50-dotnet-templates-5.0` Red Hat:rhel_dotnet:5.0::el7	before 0:5.0.211-1.el7_9	0:5.0.211-1.el7_9
`rh-dotnet50-netstandard-targeting-pack-2.1` Red Hat:rhel_dotnet:5.0::el7	before 0:5.0.211-1.el7_9	0:5.0.211-1.el7_9
`rh-dotnet60-aspnetcore-runtime-6.0` Red Hat:rhel_dotnet:6.0::el7	before 0:6.0.2-1.el7_9	0:6.0.2-1.el7_9
`rh-dotnet60-aspnetcore-targeting-pack-6.0` Red Hat:rhel_dotnet:6.0::el7	before 0:6.0.2-1.el7_9	0:6.0.2-1.el7_9
`rh-dotnet60-dotnet` Red Hat:rhel_dotnet:6.0::el7	before 0:6.0.102-1.el7_9	0:6.0.102-1.el7_9
`rh-dotnet60-dotnet-apphost-pack-6.0` Red Hat:rhel_dotnet:6.0::el7	before 0:6.0.2-1.el7_9	0:6.0.2-1.el7_9
`rh-dotnet60-dotnet-debuginfo` Red Hat:rhel_dotnet:6.0::el7	before 0:6.0.102-1.el7_9	0:6.0.102-1.el7_9
`rh-dotnet60-dotnet-host` Red Hat:rhel_dotnet:6.0::el7	before 0:6.0.2-1.el7_9	0:6.0.2-1.el7_9
`rh-dotnet60-dotnet-hostfxr-6.0` Red Hat:rhel_dotnet:6.0::el7	before 0:6.0.2-1.el7_9	0:6.0.2-1.el7_9
`rh-dotnet60-dotnet-runtime-6.0` Red Hat:rhel_dotnet:6.0::el7	before 0:6.0.2-1.el7_9	0:6.0.2-1.el7_9
`rh-dotnet60-dotnet-sdk-6.0` Red Hat:rhel_dotnet:6.0::el7	before 0:6.0.102-1.el7_9	0:6.0.102-1.el7_9
`rh-dotnet60-dotnet-sdk-6.0-source-built-artifacts` Red Hat:rhel_dotnet:6.0::el7	before 0:6.0.102-1.el7_9	0:6.0.102-1.el7_9
`rh-dotnet60-dotnet-targeting-pack-6.0` Red Hat:rhel_dotnet:6.0::el7	before 0:6.0.2-1.el7_9	0:6.0.2-1.el7_9
`rh-dotnet60-dotnet-templates-6.0` Red Hat:rhel_dotnet:6.0::el7	before 0:6.0.102-1.el7_9	0:6.0.102-1.el7_9
`rh-dotnet60-netstandard-targeting-pack-2.1` Red Hat:rhel_dotnet:6.0::el7	before 0:6.0.102-1.el7_9	0:6.0.102-1.el7_9
`dotnet5.0` Rocky Linux:8	before 0:5.0.211-1.el8_5	0:5.0.211-1.el8_5
`dotnet6.0` Rocky Linux:8	before 0:6.0.102-1.el8_5	0:6.0.102-1.el8_5

History

History
Recorded	Changed	Sources
Nov 6, 2026	affected, facts
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2022-21986 is a high vulnerability (CVSS 7.5) in Microsoft .net, published February 9, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 3.74%, the 89th percentile. Fixed in Microsoft.AspNetCore.App.Runtime.win-x64 5.0.14.

References

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