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TI-2021-01437 Aliases CVE-2021-1721GHSA-3gp9-h8hw-pxpw

.NET Core and Visual Studio Denial of Service Vulnerability

Priority LOW 35Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · None · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA, GitHub and Red Hat.

Summary

.NET Core and Visual Studio Denial of Service Vulnerability

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0334 88th percentileScored 2026-11-07
Fix Fixed Microsoft Visual Studio 2019 version 16.7 (includes 16.0 – 16.6) (Microsoft): publicationPowerShell Core 7.1 (Microsoft): publication+52 more productsRed Hat: 6 advisories

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
MicrosoftMicrosoft Visual Studio 2019 version 16.7 (includes 16.0 – 16.6)16.0.0 to before publicationpublicationPatch availableCNA
MicrosoftPowerShell Core 7.17.1.0 to before publicationpublicationPatch availableCNA
MicrosoftPowerShell Core 7.07.0.0 to before publicationpublicationPatch availableCNA
Microsoft.NET Core 2.12.1 to before publicationpublicationPatch availableCNA
Microsoft.NET Core 3.13.1 to before publicationpublicationPatch availableCNA
Microsoft.NET 5.05.0.0 to before publicationpublicationPatch availableCNA
MicrosoftMicrosoft Visual Studio 2019 version 16.4 (includes 16.0 - 16.3)16.0 to before publicationpublicationPatch availableCNA
MicrosoftMicrosoft Visual Studio 2019 version 16.816.0 to before publicationpublicationPatch availableCNA
MicrosoftMicrosoft Visual Studio 2017 version 15.9 (includes 15.0 - 15.8)15.9.0 to before publicationpublicationPatch availableCNA
—Microsoft.NETCore.App (NuGet)2.1.0 to before 2.1.252.1.25Patch availableGHSA-3gp9-h8hw-pxpw
—Microsoft.NETCore.App.Host.linux-arm (NuGet)3.1.0 to before 3.1.123.1.12Patch availableGHSA-3gp9-h8hw-pxpw
—Microsoft.NETCore.App.Host.linux-arm64 (NuGet)3.1.0 to before 3.1.123.1.12Patch availableGHSA-3gp9-h8hw-pxpw
—Microsoft.NETCore.App.Host.linux-musl-arm64 (NuGet)3.1.0 to before 3.1.123.1.12Patch availableGHSA-3gp9-h8hw-pxpw
—Microsoft.NETCore.App.Host.linux-musl-x64 (NuGet)3.1.0 to before 3.1.123.1.12Patch availableGHSA-3gp9-h8hw-pxpw
—Microsoft.NETCore.App.Host.linux-x64 (NuGet)3.1.0 to before 3.1.123.1.12Patch availableGHSA-3gp9-h8hw-pxpw
—Microsoft.NETCore.App.Host.osx-x64 (NuGet)3.1.0 to before 3.1.123.1.12Patch availableGHSA-3gp9-h8hw-pxpw
—Microsoft.NETCore.App.Host.rhel.6-x64 (NuGet)3.1.0 to before 3.1.123.1.12Patch availableGHSA-3gp9-h8hw-pxpw
—Microsoft.NETCore.App.Host.win-arm (NuGet)3.1.0 to before 3.1.123.1.12Patch availableGHSA-3gp9-h8hw-pxpw
—Microsoft.NETCore.App.Host.win-arm64 (NuGet)3.1.0 to before 3.1.123.1.12Patch availableGHSA-3gp9-h8hw-pxpw
—Microsoft.NETCore.App.Host.win-x64 (NuGet)3.1.0 to before 3.1.123.1.12Patch availableGHSA-3gp9-h8hw-pxpw
—Microsoft.NETCore.App.Host.win-x86 (NuGet)3.1.0 to before 3.1.123.1.12Patch availableGHSA-3gp9-h8hw-pxpw
—Microsoft.NETCore.App.Runtime.linux-arm (NuGet)3.1.0 to before 3.1.123.1.12Patch availableGHSA-3gp9-h8hw-pxpw
—Microsoft.NETCore.App.Runtime.linux-arm64 (NuGet)3.1.0 to before 3.1.123.1.12Patch availableGHSA-3gp9-h8hw-pxpw
—Microsoft.NETCore.App.Runtime.linux-musl-arm64 (NuGet)3.1.0 to before 3.1.123.1.12Patch availableGHSA-3gp9-h8hw-pxpw
—Microsoft.NETCore.App.Runtime.linux-musl-x64 (NuGet)3.1.0 to before 3.1.123.1.12Patch availableGHSA-3gp9-h8hw-pxpw
—Microsoft.NETCore.App.Runtime.linux-x64 (NuGet)3.1.0 to before 3.1.123.1.12Patch availableGHSA-3gp9-h8hw-pxpw
—Microsoft.NETCore.App.Runtime.osx-x64 (NuGet)3.1.0 to before 3.1.123.1.12Patch availableGHSA-3gp9-h8hw-pxpw
—Microsoft.NETCore.App.Runtime.rhel.6-x64 (NuGet)3.1.0 to before 3.1.123.1.12Patch availableGHSA-3gp9-h8hw-pxpw
—Microsoft.NETCore.App.Runtime.win-arm (NuGet)3.1.0 to before 3.1.123.1.12Patch availableGHSA-3gp9-h8hw-pxpw
—Microsoft.NETCore.App.Runtime.win-arm64 (NuGet)3.1.0 to before 3.1.123.1.12Patch availableGHSA-3gp9-h8hw-pxpw
—Microsoft.NETCore.App.Runtime.win-x64 (NuGet)3.1.0 to before 3.1.123.1.12Patch availableGHSA-3gp9-h8hw-pxpw
—Microsoft.NETCore.App.Runtime.win-x86 (NuGet)3.1.0 to before 3.1.123.1.12Patch availableGHSA-3gp9-h8hw-pxpw
—Microsoft.NETCore.App.Runtime.Mono.LLVM.AOT.linux-arm64 (NuGet)5.0.0 to before 5.0.35.0.3Patch availableGHSA-3gp9-h8hw-pxpw
—Microsoft.NETCore.App.Runtime.Mono.LLVM.AOT.linux-x64 (NuGet)5.0.0 to before 5.0.35.0.3Patch availableGHSA-3gp9-h8hw-pxpw
—Microsoft.NETCore.App.Runtime.Mono.LLVM.AOT.osx-x64 (NuGet)5.0.0 to before 5.0.35.0.3Patch availableGHSA-3gp9-h8hw-pxpw
—Microsoft.NETCore.App.Runtime.Mono.LLVM.linux-arm64 (NuGet)5.0.0 to before 5.0.35.0.3Patch availableGHSA-3gp9-h8hw-pxpw
—Microsoft.NETCore.App.Runtime.Mono.LLVM.linux-x64 (NuGet)5.0.0 to before 5.0.35.0.3Patch availableGHSA-3gp9-h8hw-pxpw
—Microsoft.NETCore.App.Runtime.Mono.LLVM.osx-x64 (NuGet)5.0.0 to before 5.0.35.0.3Patch availableGHSA-3gp9-h8hw-pxpw
—Microsoft.NETCore.App.Runtime.Mono.linux-arm (NuGet)5.0.0 to before 5.0.35.0.3Patch availableGHSA-3gp9-h8hw-pxpw
—Microsoft.NETCore.App.Runtime.Mono.linux-arm64 (NuGet)5.0.0 to before 5.0.35.0.3Patch availableGHSA-3gp9-h8hw-pxpw
—Microsoft.NETCore.App.Runtime.Mono.linux-musl-x64 (NuGet)5.0.0 to before 5.0.35.0.3Patch availableGHSA-3gp9-h8hw-pxpw
—Microsoft.NETCore.App.Runtime.Mono.linux-x64 (NuGet)5.0.0 to before 5.0.35.0.3Patch availableGHSA-3gp9-h8hw-pxpw
—Microsoft.NETCore.App.Runtime.Mono.osx-x64 (NuGet)5.0.0 to before 5.0.35.0.3Patch availableGHSA-3gp9-h8hw-pxpw
—Microsoft.NETCore.App.Runtime.android-arm (NuGet)5.0.0 to before 5.0.35.0.3Patch availableGHSA-3gp9-h8hw-pxpw
—Microsoft.NETCore.App.Runtime.android-arm64 (NuGet)5.0.0 to before 5.0.35.0.3Patch availableGHSA-3gp9-h8hw-pxpw
—Microsoft.NETCore.App.Runtime.android-x64 (NuGet)5.0.0 to before 5.0.35.0.3Patch availableGHSA-3gp9-h8hw-pxpw
—Microsoft.NETCore.App.Runtime.android-x86 (NuGet)5.0.0 to before 5.0.35.0.3Patch availableGHSA-3gp9-h8hw-pxpw
—Microsoft.NETCore.App.Runtime.browser-wasm (NuGet)5.0.0 to before 5.0.35.0.3Patch availableGHSA-3gp9-h8hw-pxpw
—Microsoft.NETCore.App.Runtime.ios-arm (NuGet)5.0.0 to before 5.0.35.0.3Patch availableGHSA-3gp9-h8hw-pxpw
—Microsoft.NETCore.App.Runtime.ios-x64 (NuGet)5.0.0 to before 5.0.35.0.3Patch availableGHSA-3gp9-h8hw-pxpw
—Microsoft.NETCore.App.Runtime.ios-x86 (NuGet)5.0.0 to before 5.0.35.0.3Patch availableGHSA-3gp9-h8hw-pxpw
—Microsoft.NETCore.App.Runtime.linux-arm (NuGet)5.0.0 to before 5.0.35.0.3Patch availableGHSA-3gp9-h8hw-pxpw
—Microsoft.NETCore.App.Runtime.linux-arm64 (NuGet)5.0.0 to before 5.0.35.0.3Patch availableGHSA-3gp9-h8hw-pxpw
—Microsoft.NETCore.App.Runtime.linux-musl-arm (NuGet)5.0.0 to before 5.0.35.0.3Patch availableGHSA-3gp9-h8hw-pxpw
—Microsoft.NETCore.App.Runtime.linux-musl-arm64 (NuGet)5.0.0 to before 5.0.35.0.3Patch availableGHSA-3gp9-h8hw-pxpw
—Microsoft.NETCore.App.Runtime.linux-musl-x64 (NuGet)5.0.0 to before 5.0.35.0.3Patch availableGHSA-3gp9-h8hw-pxpw
—Microsoft.NETCore.App.Runtime.linux-x64 (NuGet)5.0.0 to before 5.0.35.0.3Patch availableGHSA-3gp9-h8hw-pxpw
—Microsoft.NETCore.App.Runtime.osx-x64 (NuGet)5.0.0 to before 5.0.35.0.3Patch availableGHSA-3gp9-h8hw-pxpw
—Microsoft.NETCore.App.Runtime.tvos-arm64 (NuGet)5.0.0 to before 5.0.35.0.3Patch availableGHSA-3gp9-h8hw-pxpw
—Microsoft.NETCore.App.Runtime.tvos-x64 (NuGet)5.0.0 to before 5.0.35.0.3Patch availableGHSA-3gp9-h8hw-pxpw
—Microsoft.NETCore.App.Runtime.win-arm (NuGet)5.0.0 to before 5.0.35.0.3Patch availableGHSA-3gp9-h8hw-pxpw
—Microsoft.NETCore.App.Runtime.win-arm64 (NuGet)5.0.0 to before 5.0.35.0.3Patch availableGHSA-3gp9-h8hw-pxpw
—Microsoft.NETCore.App.Runtime.win-x64 (NuGet)5.0.0 to before 5.0.35.0.3Patch availableGHSA-3gp9-h8hw-pxpw
—Microsoft.NETCore.App.Runtime.win-x86 (NuGet)5.0.0 to before 5.0.35.0.3Patch availableGHSA-3gp9-h8hw-pxpw
  • Microsoft Visual Studio 2019 version 16.7 (includes 16.0 – 16.6) VendorMicrosoft Affected 16.0.0 to before publication Fixed in publication Patch available CNA
  • PowerShell Core 7.1 VendorMicrosoft Affected 7.1.0 to before publication Fixed in publication Patch available CNA
  • PowerShell Core 7.0 VendorMicrosoft Affected 7.0.0 to before publication Fixed in publication Patch available CNA
  • .NET Core 2.1 VendorMicrosoft Affected 2.1 to before publication Fixed in publication Patch available CNA
  • .NET Core 3.1 VendorMicrosoft Affected 3.1 to before publication Fixed in publication Patch available CNA
  • .NET 5.0 VendorMicrosoft Affected 5.0.0 to before publication Fixed in publication Patch available CNA
  • Microsoft Visual Studio 2019 version 16.4 (includes 16.0 - 16.3) VendorMicrosoft Affected 16.0 to before publication Fixed in publication Patch available CNA
  • Microsoft Visual Studio 2019 version 16.8 VendorMicrosoft Affected 16.0 to before publication Fixed in publication Patch available CNA
  • Microsoft Visual Studio 2017 version 15.9 (includes 15.0 - 15.8) VendorMicrosoft Affected 15.9.0 to before publication Fixed in publication Patch available CNA
  • Microsoft.NETCore.App (NuGet) Vendor— Affected 2.1.0 to before 2.1.25 Fixed in 2.1.25 Patch available GHSA-3gp9-h8hw-pxpw
  • Microsoft.NETCore.App.Host.linux-arm (NuGet) Vendor— Affected 3.1.0 to before 3.1.12 Fixed in 3.1.12 Patch available GHSA-3gp9-h8hw-pxpw
  • Microsoft.NETCore.App.Host.linux-arm64 (NuGet) Vendor— Affected 3.1.0 to before 3.1.12 Fixed in 3.1.12 Patch available GHSA-3gp9-h8hw-pxpw
  • Microsoft.NETCore.App.Host.linux-musl-arm64 (NuGet) Vendor— Affected 3.1.0 to before 3.1.12 Fixed in 3.1.12 Patch available GHSA-3gp9-h8hw-pxpw
  • Microsoft.NETCore.App.Host.linux-musl-x64 (NuGet) Vendor— Affected 3.1.0 to before 3.1.12 Fixed in 3.1.12 Patch available GHSA-3gp9-h8hw-pxpw
  • Microsoft.NETCore.App.Host.linux-x64 (NuGet) Vendor— Affected 3.1.0 to before 3.1.12 Fixed in 3.1.12 Patch available GHSA-3gp9-h8hw-pxpw
  • Microsoft.NETCore.App.Host.osx-x64 (NuGet) Vendor— Affected 3.1.0 to before 3.1.12 Fixed in 3.1.12 Patch available GHSA-3gp9-h8hw-pxpw
  • Microsoft.NETCore.App.Host.rhel.6-x64 (NuGet) Vendor— Affected 3.1.0 to before 3.1.12 Fixed in 3.1.12 Patch available GHSA-3gp9-h8hw-pxpw
  • Microsoft.NETCore.App.Host.win-arm (NuGet) Vendor— Affected 3.1.0 to before 3.1.12 Fixed in 3.1.12 Patch available GHSA-3gp9-h8hw-pxpw
  • Microsoft.NETCore.App.Host.win-arm64 (NuGet) Vendor— Affected 3.1.0 to before 3.1.12 Fixed in 3.1.12 Patch available GHSA-3gp9-h8hw-pxpw
  • Microsoft.NETCore.App.Host.win-x64 (NuGet) Vendor— Affected 3.1.0 to before 3.1.12 Fixed in 3.1.12 Patch available GHSA-3gp9-h8hw-pxpw
  • Microsoft.NETCore.App.Host.win-x86 (NuGet) Vendor— Affected 3.1.0 to before 3.1.12 Fixed in 3.1.12 Patch available GHSA-3gp9-h8hw-pxpw
  • Microsoft.NETCore.App.Runtime.linux-arm (NuGet) Vendor— Affected 3.1.0 to before 3.1.12 Fixed in 3.1.12 Patch available GHSA-3gp9-h8hw-pxpw
  • Microsoft.NETCore.App.Runtime.linux-arm64 (NuGet) Vendor— Affected 3.1.0 to before 3.1.12 Fixed in 3.1.12 Patch available GHSA-3gp9-h8hw-pxpw
  • Microsoft.NETCore.App.Runtime.linux-musl-arm64 (NuGet) Vendor— Affected 3.1.0 to before 3.1.12 Fixed in 3.1.12 Patch available GHSA-3gp9-h8hw-pxpw
  • Microsoft.NETCore.App.Runtime.linux-musl-x64 (NuGet) Vendor— Affected 3.1.0 to before 3.1.12 Fixed in 3.1.12 Patch available GHSA-3gp9-h8hw-pxpw
  • Microsoft.NETCore.App.Runtime.linux-x64 (NuGet) Vendor— Affected 3.1.0 to before 3.1.12 Fixed in 3.1.12 Patch available GHSA-3gp9-h8hw-pxpw
  • Microsoft.NETCore.App.Runtime.osx-x64 (NuGet) Vendor— Affected 3.1.0 to before 3.1.12 Fixed in 3.1.12 Patch available GHSA-3gp9-h8hw-pxpw
  • Microsoft.NETCore.App.Runtime.rhel.6-x64 (NuGet) Vendor— Affected 3.1.0 to before 3.1.12 Fixed in 3.1.12 Patch available GHSA-3gp9-h8hw-pxpw
  • Microsoft.NETCore.App.Runtime.win-arm (NuGet) Vendor— Affected 3.1.0 to before 3.1.12 Fixed in 3.1.12 Patch available GHSA-3gp9-h8hw-pxpw
  • Microsoft.NETCore.App.Runtime.win-arm64 (NuGet) Vendor— Affected 3.1.0 to before 3.1.12 Fixed in 3.1.12 Patch available GHSA-3gp9-h8hw-pxpw
  • Microsoft.NETCore.App.Runtime.win-x64 (NuGet) Vendor— Affected 3.1.0 to before 3.1.12 Fixed in 3.1.12 Patch available GHSA-3gp9-h8hw-pxpw
  • Microsoft.NETCore.App.Runtime.win-x86 (NuGet) Vendor— Affected 3.1.0 to before 3.1.12 Fixed in 3.1.12 Patch available GHSA-3gp9-h8hw-pxpw
  • Microsoft.NETCore.App.Runtime.Mono.LLVM.AOT.linux-arm64 (NuGet) Vendor— Affected 5.0.0 to before 5.0.3 Fixed in 5.0.3 Patch available GHSA-3gp9-h8hw-pxpw
  • Microsoft.NETCore.App.Runtime.Mono.LLVM.AOT.linux-x64 (NuGet) Vendor— Affected 5.0.0 to before 5.0.3 Fixed in 5.0.3 Patch available GHSA-3gp9-h8hw-pxpw
  • Microsoft.NETCore.App.Runtime.Mono.LLVM.AOT.osx-x64 (NuGet) Vendor— Affected 5.0.0 to before 5.0.3 Fixed in 5.0.3 Patch available GHSA-3gp9-h8hw-pxpw
  • Microsoft.NETCore.App.Runtime.Mono.LLVM.linux-arm64 (NuGet) Vendor— Affected 5.0.0 to before 5.0.3 Fixed in 5.0.3 Patch available GHSA-3gp9-h8hw-pxpw
  • Microsoft.NETCore.App.Runtime.Mono.LLVM.linux-x64 (NuGet) Vendor— Affected 5.0.0 to before 5.0.3 Fixed in 5.0.3 Patch available GHSA-3gp9-h8hw-pxpw
  • Microsoft.NETCore.App.Runtime.Mono.LLVM.osx-x64 (NuGet) Vendor— Affected 5.0.0 to before 5.0.3 Fixed in 5.0.3 Patch available GHSA-3gp9-h8hw-pxpw
  • Microsoft.NETCore.App.Runtime.Mono.linux-arm (NuGet) Vendor— Affected 5.0.0 to before 5.0.3 Fixed in 5.0.3 Patch available GHSA-3gp9-h8hw-pxpw
  • Microsoft.NETCore.App.Runtime.Mono.linux-arm64 (NuGet) Vendor— Affected 5.0.0 to before 5.0.3 Fixed in 5.0.3 Patch available GHSA-3gp9-h8hw-pxpw
  • Microsoft.NETCore.App.Runtime.Mono.linux-musl-x64 (NuGet) Vendor— Affected 5.0.0 to before 5.0.3 Fixed in 5.0.3 Patch available GHSA-3gp9-h8hw-pxpw
  • Microsoft.NETCore.App.Runtime.Mono.linux-x64 (NuGet) Vendor— Affected 5.0.0 to before 5.0.3 Fixed in 5.0.3 Patch available GHSA-3gp9-h8hw-pxpw
  • Microsoft.NETCore.App.Runtime.Mono.osx-x64 (NuGet) Vendor— Affected 5.0.0 to before 5.0.3 Fixed in 5.0.3 Patch available GHSA-3gp9-h8hw-pxpw
  • Microsoft.NETCore.App.Runtime.android-arm (NuGet) Vendor— Affected 5.0.0 to before 5.0.3 Fixed in 5.0.3 Patch available GHSA-3gp9-h8hw-pxpw
  • Microsoft.NETCore.App.Runtime.android-arm64 (NuGet) Vendor— Affected 5.0.0 to before 5.0.3 Fixed in 5.0.3 Patch available GHSA-3gp9-h8hw-pxpw
  • Microsoft.NETCore.App.Runtime.android-x64 (NuGet) Vendor— Affected 5.0.0 to before 5.0.3 Fixed in 5.0.3 Patch available GHSA-3gp9-h8hw-pxpw
  • Microsoft.NETCore.App.Runtime.android-x86 (NuGet) Vendor— Affected 5.0.0 to before 5.0.3 Fixed in 5.0.3 Patch available GHSA-3gp9-h8hw-pxpw
  • Microsoft.NETCore.App.Runtime.browser-wasm (NuGet) Vendor— Affected 5.0.0 to before 5.0.3 Fixed in 5.0.3 Patch available GHSA-3gp9-h8hw-pxpw
  • Microsoft.NETCore.App.Runtime.ios-arm (NuGet) Vendor— Affected 5.0.0 to before 5.0.3 Fixed in 5.0.3 Patch available GHSA-3gp9-h8hw-pxpw
  • Microsoft.NETCore.App.Runtime.ios-x64 (NuGet) Vendor— Affected 5.0.0 to before 5.0.3 Fixed in 5.0.3 Patch available GHSA-3gp9-h8hw-pxpw
  • Microsoft.NETCore.App.Runtime.ios-x86 (NuGet) Vendor— Affected 5.0.0 to before 5.0.3 Fixed in 5.0.3 Patch available GHSA-3gp9-h8hw-pxpw
  • Microsoft.NETCore.App.Runtime.linux-arm (NuGet) Vendor— Affected 5.0.0 to before 5.0.3 Fixed in 5.0.3 Patch available GHSA-3gp9-h8hw-pxpw
  • Microsoft.NETCore.App.Runtime.linux-arm64 (NuGet) Vendor— Affected 5.0.0 to before 5.0.3 Fixed in 5.0.3 Patch available GHSA-3gp9-h8hw-pxpw
  • Microsoft.NETCore.App.Runtime.linux-musl-arm (NuGet) Vendor— Affected 5.0.0 to before 5.0.3 Fixed in 5.0.3 Patch available GHSA-3gp9-h8hw-pxpw
  • Microsoft.NETCore.App.Runtime.linux-musl-arm64 (NuGet) Vendor— Affected 5.0.0 to before 5.0.3 Fixed in 5.0.3 Patch available GHSA-3gp9-h8hw-pxpw
  • Microsoft.NETCore.App.Runtime.linux-musl-x64 (NuGet) Vendor— Affected 5.0.0 to before 5.0.3 Fixed in 5.0.3 Patch available GHSA-3gp9-h8hw-pxpw
  • Microsoft.NETCore.App.Runtime.linux-x64 (NuGet) Vendor— Affected 5.0.0 to before 5.0.3 Fixed in 5.0.3 Patch available GHSA-3gp9-h8hw-pxpw
  • Microsoft.NETCore.App.Runtime.osx-x64 (NuGet) Vendor— Affected 5.0.0 to before 5.0.3 Fixed in 5.0.3 Patch available GHSA-3gp9-h8hw-pxpw
  • Microsoft.NETCore.App.Runtime.tvos-arm64 (NuGet) Vendor— Affected 5.0.0 to before 5.0.3 Fixed in 5.0.3 Patch available GHSA-3gp9-h8hw-pxpw
  • Microsoft.NETCore.App.Runtime.tvos-x64 (NuGet) Vendor— Affected 5.0.0 to before 5.0.3 Fixed in 5.0.3 Patch available GHSA-3gp9-h8hw-pxpw
  • Microsoft.NETCore.App.Runtime.win-arm (NuGet) Vendor— Affected 5.0.0 to before 5.0.3 Fixed in 5.0.3 Patch available GHSA-3gp9-h8hw-pxpw
  • Microsoft.NETCore.App.Runtime.win-arm64 (NuGet) Vendor— Affected 5.0.0 to before 5.0.3 Fixed in 5.0.3 Patch available GHSA-3gp9-h8hw-pxpw
  • Microsoft.NETCore.App.Runtime.win-x64 (NuGet) Vendor— Affected 5.0.0 to before 5.0.3 Fixed in 5.0.3 Patch available GHSA-3gp9-h8hw-pxpw
  • Microsoft.NETCore.App.Runtime.win-x86 (NuGet) Vendor— Affected 5.0.0 to before 5.0.3 Fixed in 5.0.3 Patch available GHSA-3gp9-h8hw-pxpw

CPE configurations NVD · 6

CPEVersionsRoleVendor
cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:*5.0 – 5.0.2VulnerableMicrosoft
cpe:2.3:a:microsoft:.net_core:*:*:*:*:*:*:*:*2.1 – 2.1.24; 3.1 – 3.1.11VulnerableMicrosoft
cpe:2.3:a:microsoft:powershell_core:7.0:*:*:*:*:*:*:*7.0VulnerableMicrosoft
cpe:2.3:a:microsoft:powershell_core:7.1:*:*:*:*:*:*:*7.1VulnerableMicrosoft
cpe:2.3:a:microsoft:visual_studio_2017:*:*:*:*:*:*:*:*15.0 – 15.9VulnerableMicrosoft
cpe:2.3:a:microsoft:visual_studio_2019:*:*:*:*:*:*:*:*16.0 – 16.8VulnerableMicrosoft
  • cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:* Versions 5.0 – 5.0.2 Vulnerable ·Microsoft
  • cpe:2.3:a:microsoft:.net_core:*:*:*:*:*:*:*:* Versions 2.1 – 2.1.24; 3.1 – 3.1.11 Vulnerable ·Microsoft
  • cpe:2.3:a:microsoft:powershell_core:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Microsoft
  • cpe:2.3:a:microsoft:powershell_core:7.1:*:*:*:*:*:*:* Versions 7.1 Vulnerable ·Microsoft
  • cpe:2.3:a:microsoft:visual_studio_2017:*:*:*:*:*:*:*:* Versions 15.0 – 15.9 Vulnerable ·Microsoft
  • cpe:2.3:a:microsoft:visual_studio_2019:*:*:*:*:*:*:*:* Versions 16.0 – 16.8 Vulnerable ·Microsoft

Remediation

  • Fix · CNA Microsoft Visual Studio 2019 version 16.7 (includes 16.0 – 16.6) (Microsoft) Fixed in publication
  • Fix · CNA PowerShell Core 7.1 (Microsoft) Fixed in publication
  • Fix · CNA PowerShell Core 7.0 (Microsoft) Fixed in publication
  • Fix · CNA .NET Core 2.1 (Microsoft) Fixed in publication
  • Fix · CNA .NET Core 3.1 (Microsoft) Fixed in publication
  • Fix · CNA .NET 5.0 (Microsoft) Fixed in publication
  • Fix · CNA Microsoft Visual Studio 2019 version 16.4 (includes 16.0 - 16.3) (Microsoft) Fixed in publication
  • Fix · CNA Microsoft Visual Studio 2019 version 16.8 (Microsoft) Fixed in publication
  • Fix · CNA Microsoft Visual Studio 2017 version 15.9 (includes 15.0 - 15.8) (Microsoft) Fixed in publication
  • Fix · GHSA-3gp9-h8hw-pxpw Microsoft.NETCore.App (NuGet) Fixed in 2.1.25 Advisory →
  • Fix · GHSA-3gp9-h8hw-pxpw Microsoft.NETCore.App.Host.linux-arm (NuGet) Fixed in 3.1.12 Advisory →
  • Fix · GHSA-3gp9-h8hw-pxpw Microsoft.NETCore.App.Host.linux-arm64 (NuGet) Fixed in 3.1.12 Advisory →
  • Fix · GHSA-3gp9-h8hw-pxpw Microsoft.NETCore.App.Host.linux-musl-arm64 (NuGet) Fixed in 3.1.12 Advisory →
  • Fix · GHSA-3gp9-h8hw-pxpw Microsoft.NETCore.App.Host.linux-musl-x64 (NuGet) Fixed in 3.1.12 Advisory →
  • Fix · GHSA-3gp9-h8hw-pxpw Microsoft.NETCore.App.Host.linux-x64 (NuGet) Fixed in 3.1.12 Advisory →
  • Fix · GHSA-3gp9-h8hw-pxpw Microsoft.NETCore.App.Host.osx-x64 (NuGet) Fixed in 3.1.12 Advisory →
  • Fix · GHSA-3gp9-h8hw-pxpw Microsoft.NETCore.App.Host.rhel.6-x64 (NuGet) Fixed in 3.1.12 Advisory →
  • Fix · GHSA-3gp9-h8hw-pxpw Microsoft.NETCore.App.Host.win-arm (NuGet) Fixed in 3.1.12 Advisory →
  • Fix · GHSA-3gp9-h8hw-pxpw Microsoft.NETCore.App.Host.win-arm64 (NuGet) Fixed in 3.1.12 Advisory →
  • Fix · GHSA-3gp9-h8hw-pxpw Microsoft.NETCore.App.Host.win-x64 (NuGet) Fixed in 3.1.12 Advisory →
  • Fix · GHSA-3gp9-h8hw-pxpw Microsoft.NETCore.App.Host.win-x86 (NuGet) Fixed in 3.1.12 Advisory →
  • Fix · GHSA-3gp9-h8hw-pxpw Microsoft.NETCore.App.Runtime.linux-arm (NuGet) Fixed in 3.1.12 Advisory →
  • Fix · GHSA-3gp9-h8hw-pxpw Microsoft.NETCore.App.Runtime.linux-arm64 (NuGet) Fixed in 3.1.12 Advisory →
  • Fix · GHSA-3gp9-h8hw-pxpw Microsoft.NETCore.App.Runtime.linux-musl-arm64 (NuGet) Fixed in 3.1.12 Advisory →
  • Fix · GHSA-3gp9-h8hw-pxpw Microsoft.NETCore.App.Runtime.linux-musl-x64 (NuGet) Fixed in 3.1.12 Advisory →
  • Fix · GHSA-3gp9-h8hw-pxpw Microsoft.NETCore.App.Runtime.linux-x64 (NuGet) Fixed in 3.1.12 Advisory →
  • Fix · GHSA-3gp9-h8hw-pxpw Microsoft.NETCore.App.Runtime.osx-x64 (NuGet) Fixed in 3.1.12 Advisory →
  • Fix · GHSA-3gp9-h8hw-pxpw Microsoft.NETCore.App.Runtime.rhel.6-x64 (NuGet) Fixed in 3.1.12 Advisory →
  • Fix · GHSA-3gp9-h8hw-pxpw Microsoft.NETCore.App.Runtime.win-arm (NuGet) Fixed in 3.1.12 Advisory →
  • Fix · GHSA-3gp9-h8hw-pxpw Microsoft.NETCore.App.Runtime.win-arm64 (NuGet) Fixed in 3.1.12 Advisory →
  • Fix · GHSA-3gp9-h8hw-pxpw Microsoft.NETCore.App.Runtime.win-x64 (NuGet) Fixed in 3.1.12 Advisory →
  • Fix · GHSA-3gp9-h8hw-pxpw Microsoft.NETCore.App.Runtime.win-x86 (NuGet) Fixed in 3.1.12 Advisory →
  • Fix · GHSA-3gp9-h8hw-pxpw Microsoft.NETCore.App.Runtime.Mono.LLVM.AOT.linux-arm64 (NuGet) Fixed in 5.0.3 Advisory →
  • Fix · GHSA-3gp9-h8hw-pxpw Microsoft.NETCore.App.Runtime.Mono.LLVM.AOT.linux-x64 (NuGet) Fixed in 5.0.3 Advisory →
  • Fix · GHSA-3gp9-h8hw-pxpw Microsoft.NETCore.App.Runtime.Mono.LLVM.AOT.osx-x64 (NuGet) Fixed in 5.0.3 Advisory →
  • Fix · GHSA-3gp9-h8hw-pxpw Microsoft.NETCore.App.Runtime.Mono.LLVM.linux-arm64 (NuGet) Fixed in 5.0.3 Advisory →
  • Fix · GHSA-3gp9-h8hw-pxpw Microsoft.NETCore.App.Runtime.Mono.LLVM.linux-x64 (NuGet) Fixed in 5.0.3 Advisory →
  • Fix · GHSA-3gp9-h8hw-pxpw Microsoft.NETCore.App.Runtime.Mono.LLVM.osx-x64 (NuGet) Fixed in 5.0.3 Advisory →
  • Fix · GHSA-3gp9-h8hw-pxpw Microsoft.NETCore.App.Runtime.Mono.linux-arm (NuGet) Fixed in 5.0.3 Advisory →
  • Fix · GHSA-3gp9-h8hw-pxpw Microsoft.NETCore.App.Runtime.Mono.linux-arm64 (NuGet) Fixed in 5.0.3 Advisory →
  • Fix · GHSA-3gp9-h8hw-pxpw Microsoft.NETCore.App.Runtime.Mono.linux-musl-x64 (NuGet) Fixed in 5.0.3 Advisory →
  • Fix · GHSA-3gp9-h8hw-pxpw Microsoft.NETCore.App.Runtime.Mono.linux-x64 (NuGet) Fixed in 5.0.3 Advisory →
  • Fix · GHSA-3gp9-h8hw-pxpw Microsoft.NETCore.App.Runtime.Mono.osx-x64 (NuGet) Fixed in 5.0.3 Advisory →
  • Fix · GHSA-3gp9-h8hw-pxpw Microsoft.NETCore.App.Runtime.android-arm (NuGet) Fixed in 5.0.3 Advisory →
  • Fix · GHSA-3gp9-h8hw-pxpw Microsoft.NETCore.App.Runtime.android-arm64 (NuGet) Fixed in 5.0.3 Advisory →
  • Fix · GHSA-3gp9-h8hw-pxpw Microsoft.NETCore.App.Runtime.android-x64 (NuGet) Fixed in 5.0.3 Advisory →
  • Fix · GHSA-3gp9-h8hw-pxpw Microsoft.NETCore.App.Runtime.android-x86 (NuGet) Fixed in 5.0.3 Advisory →
  • Fix · GHSA-3gp9-h8hw-pxpw Microsoft.NETCore.App.Runtime.browser-wasm (NuGet) Fixed in 5.0.3 Advisory →
  • Fix · GHSA-3gp9-h8hw-pxpw Microsoft.NETCore.App.Runtime.ios-arm (NuGet) Fixed in 5.0.3 Advisory →
  • Fix · GHSA-3gp9-h8hw-pxpw Microsoft.NETCore.App.Runtime.ios-x64 (NuGet) Fixed in 5.0.3 Advisory →
  • Fix · GHSA-3gp9-h8hw-pxpw Microsoft.NETCore.App.Runtime.ios-x86 (NuGet) Fixed in 5.0.3 Advisory →
  • Fix · GHSA-3gp9-h8hw-pxpw Microsoft.NETCore.App.Runtime.linux-arm (NuGet) Fixed in 5.0.3 Advisory →
  • Fix · GHSA-3gp9-h8hw-pxpw Microsoft.NETCore.App.Runtime.linux-arm64 (NuGet) Fixed in 5.0.3 Advisory →
  • Fix · GHSA-3gp9-h8hw-pxpw Microsoft.NETCore.App.Runtime.linux-musl-arm (NuGet) Fixed in 5.0.3 Advisory →
  • Fix · GHSA-3gp9-h8hw-pxpw Microsoft.NETCore.App.Runtime.linux-musl-arm64 (NuGet) Fixed in 5.0.3 Advisory →
  • Fix · GHSA-3gp9-h8hw-pxpw Microsoft.NETCore.App.Runtime.linux-musl-x64 (NuGet) Fixed in 5.0.3 Advisory →
  • Fix · GHSA-3gp9-h8hw-pxpw Microsoft.NETCore.App.Runtime.linux-x64 (NuGet) Fixed in 5.0.3 Advisory →
  • Fix · GHSA-3gp9-h8hw-pxpw Microsoft.NETCore.App.Runtime.osx-x64 (NuGet) Fixed in 5.0.3 Advisory →
  • Fix · GHSA-3gp9-h8hw-pxpw Microsoft.NETCore.App.Runtime.tvos-arm64 (NuGet) Fixed in 5.0.3 Advisory →
  • Fix · GHSA-3gp9-h8hw-pxpw Microsoft.NETCore.App.Runtime.tvos-x64 (NuGet) Fixed in 5.0.3 Advisory →
  • Fix · GHSA-3gp9-h8hw-pxpw Microsoft.NETCore.App.Runtime.win-arm (NuGet) Fixed in 5.0.3 Advisory →
  • Fix · GHSA-3gp9-h8hw-pxpw Microsoft.NETCore.App.Runtime.win-arm64 (NuGet) Fixed in 5.0.3 Advisory →
  • Fix · GHSA-3gp9-h8hw-pxpw Microsoft.NETCore.App.Runtime.win-x64 (NuGet) Fixed in 5.0.3 Advisory →
  • Fix · GHSA-3gp9-h8hw-pxpw Microsoft.NETCore.App.Runtime.win-x86 (NuGet) Fixed in 5.0.3 Advisory →

Red Hat 6 advisories

  • RHSA-2021:0476 Released 2021-02-10 · Red Hat rating Important
    dotnet5.0 security and bugfix update
    • Red Hat Enterprise Linux AppStream (v. 8) aspnetcore-runtime-5.0-5.0.3-1.el8_3, aspnetcore-targeting-pack-5.0-5.0.3-1.el8_3, dotnet-5.0.103-1.el8_3 +9
  • RHSA-2021:0474 Released 2021-02-10 · Red Hat rating Important
    dotnet security and bugfix update
    • Red Hat Enterprise Linux AppStream (v. 8) dotnet-2.1.521-1.el8_3, dotnet-host-fxr-2.1-2.1.25-1.el8_3, dotnet-runtime-2.1-2.1.25-1.el8_3 +2
  • RHSA-2021:0472 Released 2021-02-10 · Red Hat rating Important
    .NET Core 3.1 on Red Hat Enterprise Linux security and bugfix update
    • .NET Core on Red Hat Enterprise Linux ComputeNode (v. 7) rh-dotnet31-aspnetcore-runtime-3.1-3.1.12-1.el7_9, rh-dotnet31-aspnetcore-targeting-pack-3.1-3.1.12-1.el7_9, rh-dotnet31-dotnet-3.1.112-1.el7_9 +8
    • .NET Core on Red Hat Enterprise Linux Server (v. 7) rh-dotnet31-aspnetcore-runtime-3.1-3.1.12-1.el7_9, rh-dotnet31-aspnetcore-targeting-pack-3.1-3.1.12-1.el7_9, rh-dotnet31-dotnet-3.1.112-1.el7_9 +8
    • .NET Core on Red Hat Enterprise Linux Workstation (v. 7) rh-dotnet31-aspnetcore-runtime-3.1-3.1.12-1.el7_9, rh-dotnet31-aspnetcore-targeting-pack-3.1-3.1.12-1.el7_9, rh-dotnet31-dotnet-3.1.112-1.el7_9 +8
Show 3 more Red Hat advisories
  • RHSA-2021:0473 Released 2021-02-10 · Red Hat rating Important
    .NET 5.0 on Red Hat Enterprise Linux security and bugfix update
    • .NET Core on Red Hat Enterprise Linux ComputeNode (v. 7) rh-dotnet50-aspnetcore-runtime-5.0-5.0.3-1.el7_9, rh-dotnet50-aspnetcore-targeting-pack-5.0-5.0.3-1.el7_9, rh-dotnet50-dotnet-5.0.103-1.el7_9 +8
    • .NET Core on Red Hat Enterprise Linux Server (v. 7) rh-dotnet50-aspnetcore-runtime-5.0-5.0.3-1.el7_9, rh-dotnet50-aspnetcore-targeting-pack-5.0-5.0.3-1.el7_9, rh-dotnet50-dotnet-5.0.103-1.el7_9 +8
    • .NET Core on Red Hat Enterprise Linux Workstation (v. 7) rh-dotnet50-aspnetcore-runtime-5.0-5.0.3-1.el7_9, rh-dotnet50-aspnetcore-targeting-pack-5.0-5.0.3-1.el7_9, rh-dotnet50-dotnet-5.0.103-1.el7_9 +8
  • RHSA-2021:0470 Released 2021-02-10 · Red Hat rating Important
    .NET Core 2.1 on Red Hat Enterprise Linux security and bugfix update
    • .NET Core on Red Hat Enterprise Linux ComputeNode (v. 7) rh-dotnet21-2.1-24.el7_9, rh-dotnet21-dotnet-2.1.521-1.el7_9, rh-dotnet21-dotnet-host-2.1.25-1.el7_9 +4
    • .NET Core on Red Hat Enterprise Linux Server (v. 7) rh-dotnet21-2.1-24.el7_9, rh-dotnet21-dotnet-2.1.521-1.el7_9, rh-dotnet21-dotnet-host-2.1.25-1.el7_9 +4
    • .NET Core on Red Hat Enterprise Linux Workstation (v. 7) rh-dotnet21-2.1-24.el7_9, rh-dotnet21-dotnet-2.1.521-1.el7_9, rh-dotnet21-dotnet-host-2.1.25-1.el7_9 +4
  • RHSA-2021:0471 Released 2021-02-10 · Red Hat rating Important
    dotnet3.1 security and bugfix update
    • Red Hat Enterprise Linux AppStream (v. 8) aspnetcore-runtime-3.1-3.1.12-1.el8_3, aspnetcore-targeting-pack-3.1-3.1.12-1.el8_3, dotnet-apphost-pack-3.1-3.1.12-1.el8_3 +6

Vendor assessments

Red Hat

Red Hat rating: Important. Red Hat's page for this CVE →

ProductStatusPlan or fix
.NET Core on Red Hat Enterprise Linux ComputeNode (v. 7)Fixed RHSA-2021:0470, RHSA-2021:0472, RHSA-2021:0473
.NET Core on Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2021:0470, RHSA-2021:0472, RHSA-2021:0473
.NET Core on Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2021:0470, RHSA-2021:0472, RHSA-2021:0473
Red Hat Enterprise Linux AppStream (v. 8)Fixed RHSA-2021:0471, RHSA-2021:0474, RHSA-2021:0476

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-1721
  2. 2026-10-03 Alias added: GHSA-3gp9-h8hw-pxpw

References

  • TI-2026-79288 Out-of-bounds write in Google Brotli decoder KEVCVSS 4.0CRITICAL 9.2
  • TI-2023-23979 The HTTP/2 protocol allows a denial of service (server resource consumption) because… KEVCVSS 3.1HIGH 7.5
  • TI-2023-19596 .NET and Visual Studio Denial of Service Vulnerability KEVCVSS 3.1HIGH 7.5
  • TI-2023-19588 Microsoft QUIC Denial of Service Vulnerability CVSS 3.1HIGH 7.5
  • TI-2024-14152 .NET and Visual Studio Denial of Service Vulnerability CVSS 3.1HIGH 7.5
  • TI-2021-08380 .NET Core Remote Code Execution Vulnerability CVSS 3.1CRITICAL 9.8
See all 129 →

Sources