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TI-2021-13513 Aliases CVE-2021-34485GHSA-vgwq-hfqc-58wv

.NET Core and Visual Studio Information Disclosure Vulnerability

Priority LOW 29CWE-200Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Information disclosure
Confidentiality · integrity · availability
High · None · None
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA, GitHub and Red Hat. Impact type from Microsoft.

Summary

.NET Core and Visual Studio Information Disclosure Vulnerability

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.02066 81st percentileScored 2026-11-07
Fix Fixed .NET 5.0 (Microsoft): 5.0.9.NET Core 2.1 (Microsoft): 2.1.30+32 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
Microsoft.NET 5.05.0.0 to before 5.0.95.0.9Patch availableCNA
Microsoft.NET Core 2.12.1 to before 2.1.302.1.30Patch availableCNA
Microsoft.NET Core 3.13.1 to before 3.1.183.1.18Patch availableCNA
MicrosoftMicrosoft Visual Studio 2017 version 15.9 (includes 15.0 - 15.8)15.9.0 to before 15.9.3815.9.38Patch availableCNA
MicrosoftMicrosoft Visual Studio 2019 version 16.10 (includes 16.0 - 16.9)16.10.0 to before 16.10.516.10.5Patch availableCNA
MicrosoftMicrosoft Visual Studio 2019 version 16.4 (includes 16.0 - 16.3)16.0 to before 16.4.2516.4.25Patch availableCNA
MicrosoftMicrosoft Visual Studio 2019 version 16.7 (includes 16.0 – 16.6)16.0.0 to before 16.7.1816.7.18Patch availableCNA
MicrosoftMicrosoft Visual Studio 2019 version 16.9 (includes 16.0 - 16.8)15.0.0 to before 16.9.1016.9.10Patch availableCNA
MicrosoftPowerShell 7.07.0.0 to before 7.0.77.0.7Patch availableCNA
MicrosoftPowerShell 7.17.1.0 to before 7.1.47.1.4Patch availableCNA
—Microsoft.NETCore.App (NuGet)2.1.0 to before 2.1.292.1.29Patch availableGHSA-vgwq-hfqc-58wv
—Microsoft.NETCore.App.Runtime.linux-arm (NuGet)3.1.0 to before 3.1.183.1.18Patch availableGHSA-vgwq-hfqc-58wv
—Microsoft.NETCore.App.Runtime.linux-arm64 (NuGet)3.1.0 to before 3.1.183.1.18Patch availableGHSA-vgwq-hfqc-58wv
—Microsoft.NETCore.App.Runtime.linux-musl-arm64 (NuGet)3.1.0 to before 3.1.183.1.18Patch availableGHSA-vgwq-hfqc-58wv
—Microsoft.NETCore.App.Runtime.linux-musl-x64 (NuGet)3.1.0 to before 3.1.183.1.18Patch availableGHSA-vgwq-hfqc-58wv
—Microsoft.NETCore.App.Runtime.linux-x64 (NuGet)3.1.0 to before 3.1.183.1.18Patch availableGHSA-vgwq-hfqc-58wv
—Microsoft.NETCore.App.Runtime.osx-x64 (NuGet)3.1.0 to before 3.1.183.1.18Patch availableGHSA-vgwq-hfqc-58wv
—Microsoft.NETCore.App.Runtime.rhel.6-x64 (NuGet)3.1.0 to before 3.1.183.1.18Patch availableGHSA-vgwq-hfqc-58wv
—Microsoft.NETCore.App.Runtime.win-arm (NuGet)3.1.0 to before 3.1.183.1.18Patch availableGHSA-vgwq-hfqc-58wv
—Microsoft.NETCore.App.Runtime.win-arm64 (NuGet)3.1.0 to before 3.1.183.1.18Patch availableGHSA-vgwq-hfqc-58wv
—Microsoft.NETCore.App.Runtime.win-x64 (NuGet)3.1.0 to before 3.1.183.1.18Patch availableGHSA-vgwq-hfqc-58wv
—Microsoft.NETCore.App.Runtime.win-x86 (NuGet)3.1.0 to before 3.1.183.1.18Patch availableGHSA-vgwq-hfqc-58wv
—Microsoft.NETCore.App.Runtime.linux-arm (NuGet)5.0.0 to before 5.0.95.0.9Patch availableGHSA-vgwq-hfqc-58wv
—Microsoft.NETCore.App.Runtime.linux-arm64 (NuGet)5.0.0 to before 5.0.95.0.9Patch availableGHSA-vgwq-hfqc-58wv
—Microsoft.NETCore.App.Runtime.linux-musl-arm (NuGet)5.0.0 to before 5.0.95.0.9Patch availableGHSA-vgwq-hfqc-58wv
—Microsoft.NETCore.App.Runtime.linux-musl-arm64 (NuGet)5.0.0 to before 5.0.95.0.9Patch availableGHSA-vgwq-hfqc-58wv
—Microsoft.NETCore.App.Runtime.linux-musl-x64 (NuGet)5.0.0 to before 5.0.95.0.9Patch availableGHSA-vgwq-hfqc-58wv
—Microsoft.NETCore.App.Runtime.linux-x64 (NuGet)5.0.0 to before 5.0.95.0.9Patch availableGHSA-vgwq-hfqc-58wv
—Microsoft.NETCore.App.Runtime.Mono.linux-arm (NuGet)5.0.0 to before 5.0.95.0.9Patch availableGHSA-vgwq-hfqc-58wv
—Microsoft.NETCore.App.Runtime.Mono.linux-arm64 (NuGet)5.0.0 to before 5.0.95.0.9Patch availableGHSA-vgwq-hfqc-58wv
—Microsoft.NETCore.App.Runtime.Mono.linux-musl-x64 (NuGet)5.0.0 to before 5.0.95.0.9Patch availableGHSA-vgwq-hfqc-58wv
—Microsoft.NETCore.App.Runtime.Mono.linux-x64 (NuGet)5.0.0 to before 5.0.95.0.9Patch availableGHSA-vgwq-hfqc-58wv
—Microsoft.NETCore.App.Runtime.Mono.LLVM.AOT.linux-arm64 (NuGet)5.0.0 to before 5.0.95.0.9Patch availableGHSA-vgwq-hfqc-58wv
—Microsoft.NETCore.App.Runtime.Mono.LLVM.AOT.linux-x64 (NuGet)5.0.0 to before 5.0.95.0.9Patch availableGHSA-vgwq-hfqc-58wv
—Microsoft.NETCore.App.Runtime.Mono.LLVM.AOT.osx-x64 (NuGet)5.0.0 to before 5.0.95.0.9Patch availableGHSA-vgwq-hfqc-58wv
—Microsoft.NETCore.App.Runtime.Mono.LLVM.linux-arm64 (NuGet)5.0.0 to before 5.0.95.0.9Patch availableGHSA-vgwq-hfqc-58wv
—Microsoft.NETCore.App.Runtime.Mono.LLVM.linux-x64 (NuGet)5.0.0 to before 5.0.95.0.9Patch availableGHSA-vgwq-hfqc-58wv
—Microsoft.NETCore.App.Runtime.Mono.LLVM.osx-x64 (NuGet)5.0.0 to before 5.0.95.0.9Patch availableGHSA-vgwq-hfqc-58wv
—Microsoft.NETCore.App.Runtime.Mono.osx-x64 (NuGet)5.0.0 to before 5.0.95.0.9Patch availableGHSA-vgwq-hfqc-58wv
—Microsoft.NETCore.App.Runtime.osx-x64 (NuGet)5.0.0 to before 5.0.95.0.9Patch availableGHSA-vgwq-hfqc-58wv
—Microsoft.NETCore.App.Runtime.win-arm (NuGet)5.0.0 to before 5.0.95.0.9Patch availableGHSA-vgwq-hfqc-58wv
—Microsoft.NETCore.App.Runtime.win-arm64 (NuGet)5.0.0 to before 5.0.95.0.9Patch availableGHSA-vgwq-hfqc-58wv
—Microsoft.NETCore.App.Runtime.win-x64 (NuGet)5.0.0 to before 5.0.95.0.9Patch availableGHSA-vgwq-hfqc-58wv
—Microsoft.NETCore.App.Runtime.win-x86 (NuGet)5.0.0 to before 5.0.95.0.9Patch availableGHSA-vgwq-hfqc-58wv
  • .NET 5.0 VendorMicrosoft Affected 5.0.0 to before 5.0.9 Fixed in 5.0.9 Patch available CNA
  • .NET Core 2.1 VendorMicrosoft Affected 2.1 to before 2.1.30 Fixed in 2.1.30 Patch available CNA
  • .NET Core 3.1 VendorMicrosoft Affected 3.1 to before 3.1.18 Fixed in 3.1.18 Patch available CNA
  • Microsoft Visual Studio 2017 version 15.9 (includes 15.0 - 15.8) VendorMicrosoft Affected 15.9.0 to before 15.9.38 Fixed in 15.9.38 Patch available CNA
  • Microsoft Visual Studio 2019 version 16.10 (includes 16.0 - 16.9) VendorMicrosoft Affected 16.10.0 to before 16.10.5 Fixed in 16.10.5 Patch available CNA
  • Microsoft Visual Studio 2019 version 16.4 (includes 16.0 - 16.3) VendorMicrosoft Affected 16.0 to before 16.4.25 Fixed in 16.4.25 Patch available CNA
  • Microsoft Visual Studio 2019 version 16.7 (includes 16.0 – 16.6) VendorMicrosoft Affected 16.0.0 to before 16.7.18 Fixed in 16.7.18 Patch available CNA
  • Microsoft Visual Studio 2019 version 16.9 (includes 16.0 - 16.8) VendorMicrosoft Affected 15.0.0 to before 16.9.10 Fixed in 16.9.10 Patch available CNA
  • PowerShell 7.0 VendorMicrosoft Affected 7.0.0 to before 7.0.7 Fixed in 7.0.7 Patch available CNA
  • PowerShell 7.1 VendorMicrosoft Affected 7.1.0 to before 7.1.4 Fixed in 7.1.4 Patch available CNA
  • Microsoft.NETCore.App (NuGet) Vendor— Affected 2.1.0 to before 2.1.29 Fixed in 2.1.29 Patch available GHSA-vgwq-hfqc-58wv
  • Microsoft.NETCore.App.Runtime.linux-arm (NuGet) Vendor— Affected 3.1.0 to before 3.1.18 Fixed in 3.1.18 Patch available GHSA-vgwq-hfqc-58wv
  • Microsoft.NETCore.App.Runtime.linux-arm64 (NuGet) Vendor— Affected 3.1.0 to before 3.1.18 Fixed in 3.1.18 Patch available GHSA-vgwq-hfqc-58wv
  • Microsoft.NETCore.App.Runtime.linux-musl-arm64 (NuGet) Vendor— Affected 3.1.0 to before 3.1.18 Fixed in 3.1.18 Patch available GHSA-vgwq-hfqc-58wv
  • Microsoft.NETCore.App.Runtime.linux-musl-x64 (NuGet) Vendor— Affected 3.1.0 to before 3.1.18 Fixed in 3.1.18 Patch available GHSA-vgwq-hfqc-58wv
  • Microsoft.NETCore.App.Runtime.linux-x64 (NuGet) Vendor— Affected 3.1.0 to before 3.1.18 Fixed in 3.1.18 Patch available GHSA-vgwq-hfqc-58wv
  • Microsoft.NETCore.App.Runtime.osx-x64 (NuGet) Vendor— Affected 3.1.0 to before 3.1.18 Fixed in 3.1.18 Patch available GHSA-vgwq-hfqc-58wv
  • Microsoft.NETCore.App.Runtime.rhel.6-x64 (NuGet) Vendor— Affected 3.1.0 to before 3.1.18 Fixed in 3.1.18 Patch available GHSA-vgwq-hfqc-58wv
  • Microsoft.NETCore.App.Runtime.win-arm (NuGet) Vendor— Affected 3.1.0 to before 3.1.18 Fixed in 3.1.18 Patch available GHSA-vgwq-hfqc-58wv
  • Microsoft.NETCore.App.Runtime.win-arm64 (NuGet) Vendor— Affected 3.1.0 to before 3.1.18 Fixed in 3.1.18 Patch available GHSA-vgwq-hfqc-58wv
  • Microsoft.NETCore.App.Runtime.win-x64 (NuGet) Vendor— Affected 3.1.0 to before 3.1.18 Fixed in 3.1.18 Patch available GHSA-vgwq-hfqc-58wv
  • Microsoft.NETCore.App.Runtime.win-x86 (NuGet) Vendor— Affected 3.1.0 to before 3.1.18 Fixed in 3.1.18 Patch available GHSA-vgwq-hfqc-58wv
  • Microsoft.NETCore.App.Runtime.linux-arm (NuGet) Vendor— Affected 5.0.0 to before 5.0.9 Fixed in 5.0.9 Patch available GHSA-vgwq-hfqc-58wv
  • Microsoft.NETCore.App.Runtime.linux-arm64 (NuGet) Vendor— Affected 5.0.0 to before 5.0.9 Fixed in 5.0.9 Patch available GHSA-vgwq-hfqc-58wv
  • Microsoft.NETCore.App.Runtime.linux-musl-arm (NuGet) Vendor— Affected 5.0.0 to before 5.0.9 Fixed in 5.0.9 Patch available GHSA-vgwq-hfqc-58wv
  • Microsoft.NETCore.App.Runtime.linux-musl-arm64 (NuGet) Vendor— Affected 5.0.0 to before 5.0.9 Fixed in 5.0.9 Patch available GHSA-vgwq-hfqc-58wv
  • Microsoft.NETCore.App.Runtime.linux-musl-x64 (NuGet) Vendor— Affected 5.0.0 to before 5.0.9 Fixed in 5.0.9 Patch available GHSA-vgwq-hfqc-58wv
  • Microsoft.NETCore.App.Runtime.linux-x64 (NuGet) Vendor— Affected 5.0.0 to before 5.0.9 Fixed in 5.0.9 Patch available GHSA-vgwq-hfqc-58wv
  • Microsoft.NETCore.App.Runtime.Mono.linux-arm (NuGet) Vendor— Affected 5.0.0 to before 5.0.9 Fixed in 5.0.9 Patch available GHSA-vgwq-hfqc-58wv
  • Microsoft.NETCore.App.Runtime.Mono.linux-arm64 (NuGet) Vendor— Affected 5.0.0 to before 5.0.9 Fixed in 5.0.9 Patch available GHSA-vgwq-hfqc-58wv
  • Microsoft.NETCore.App.Runtime.Mono.linux-musl-x64 (NuGet) Vendor— Affected 5.0.0 to before 5.0.9 Fixed in 5.0.9 Patch available GHSA-vgwq-hfqc-58wv
  • Microsoft.NETCore.App.Runtime.Mono.linux-x64 (NuGet) Vendor— Affected 5.0.0 to before 5.0.9 Fixed in 5.0.9 Patch available GHSA-vgwq-hfqc-58wv
  • Microsoft.NETCore.App.Runtime.Mono.LLVM.AOT.linux-arm64 (NuGet) Vendor— Affected 5.0.0 to before 5.0.9 Fixed in 5.0.9 Patch available GHSA-vgwq-hfqc-58wv
  • Microsoft.NETCore.App.Runtime.Mono.LLVM.AOT.linux-x64 (NuGet) Vendor— Affected 5.0.0 to before 5.0.9 Fixed in 5.0.9 Patch available GHSA-vgwq-hfqc-58wv
  • Microsoft.NETCore.App.Runtime.Mono.LLVM.AOT.osx-x64 (NuGet) Vendor— Affected 5.0.0 to before 5.0.9 Fixed in 5.0.9 Patch available GHSA-vgwq-hfqc-58wv
  • Microsoft.NETCore.App.Runtime.Mono.LLVM.linux-arm64 (NuGet) Vendor— Affected 5.0.0 to before 5.0.9 Fixed in 5.0.9 Patch available GHSA-vgwq-hfqc-58wv
  • Microsoft.NETCore.App.Runtime.Mono.LLVM.linux-x64 (NuGet) Vendor— Affected 5.0.0 to before 5.0.9 Fixed in 5.0.9 Patch available GHSA-vgwq-hfqc-58wv
  • Microsoft.NETCore.App.Runtime.Mono.LLVM.osx-x64 (NuGet) Vendor— Affected 5.0.0 to before 5.0.9 Fixed in 5.0.9 Patch available GHSA-vgwq-hfqc-58wv
  • Microsoft.NETCore.App.Runtime.Mono.osx-x64 (NuGet) Vendor— Affected 5.0.0 to before 5.0.9 Fixed in 5.0.9 Patch available GHSA-vgwq-hfqc-58wv
  • Microsoft.NETCore.App.Runtime.osx-x64 (NuGet) Vendor— Affected 5.0.0 to before 5.0.9 Fixed in 5.0.9 Patch available GHSA-vgwq-hfqc-58wv
  • Microsoft.NETCore.App.Runtime.win-arm (NuGet) Vendor— Affected 5.0.0 to before 5.0.9 Fixed in 5.0.9 Patch available GHSA-vgwq-hfqc-58wv
  • Microsoft.NETCore.App.Runtime.win-arm64 (NuGet) Vendor— Affected 5.0.0 to before 5.0.9 Fixed in 5.0.9 Patch available GHSA-vgwq-hfqc-58wv
  • Microsoft.NETCore.App.Runtime.win-x64 (NuGet) Vendor— Affected 5.0.0 to before 5.0.9 Fixed in 5.0.9 Patch available GHSA-vgwq-hfqc-58wv
  • Microsoft.NETCore.App.Runtime.win-x86 (NuGet) Vendor— Affected 5.0.0 to before 5.0.9 Fixed in 5.0.9 Patch available GHSA-vgwq-hfqc-58wv

CPE configurations NVD · 5

CPEVersionsRoleVendor
cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:*5.0 – 5.0.8VulnerableMicrosoft
cpe:2.3:a:microsoft:.net_core:*:*:*:*:*:*:*:*2.1 – 2.1.28; 3.1 – 3.1.17VulnerableMicrosoft
cpe:2.3:a:microsoft:powershell_core:*:*:*:*:*:*:*:*7.0 to before 7.0.7; 7.1 to before 7.1.4VulnerableMicrosoft
cpe:2.3:a:microsoft:visual_studio_2017:*:*:*:*:*:*:*:*15.0 – 15.9VulnerableMicrosoft
cpe:2.3:a:microsoft:visual_studio_2019:*:*:*:*:*:*:*:*16.0 – 16.10VulnerableMicrosoft
  • cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:* Versions 5.0 – 5.0.8 Vulnerable ·Microsoft
  • cpe:2.3:a:microsoft:.net_core:*:*:*:*:*:*:*:* Versions 2.1 – 2.1.28; 3.1 – 3.1.17 Vulnerable ·Microsoft
  • cpe:2.3:a:microsoft:powershell_core:*:*:*:*:*:*:*:* Versions 7.0 to before 7.0.7; 7.1 to before 7.1.4 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 – 16.10 Vulnerable ·Microsoft

Remediation

  • Fix · CNA .NET 5.0 (Microsoft) Fixed in 5.0.9
  • Fix · CNA .NET Core 2.1 (Microsoft) Fixed in 2.1.30
  • Fix · CNA .NET Core 3.1 (Microsoft) Fixed in 3.1.18
  • Fix · CNA Microsoft Visual Studio 2017 version 15.9 (includes 15.0 - 15.8) (Microsoft) Fixed in 15.9.38
  • Fix · CNA Microsoft Visual Studio 2019 version 16.10 (includes 16.0 - 16.9) (Microsoft) Fixed in 16.10.5
  • Fix · CNA Microsoft Visual Studio 2019 version 16.4 (includes 16.0 - 16.3) (Microsoft) Fixed in 16.4.25
  • Fix · CNA Microsoft Visual Studio 2019 version 16.7 (includes 16.0 – 16.6) (Microsoft) Fixed in 16.7.18
  • Fix · CNA Microsoft Visual Studio 2019 version 16.9 (includes 16.0 - 16.8) (Microsoft) Fixed in 16.9.10
  • Fix · CNA PowerShell 7.0 (Microsoft) Fixed in 7.0.7
  • Fix · CNA PowerShell 7.1 (Microsoft) Fixed in 7.1.4
  • Fix · GHSA-vgwq-hfqc-58wv Microsoft.NETCore.App (NuGet) Fixed in 2.1.29 Advisory →
  • Fix · GHSA-vgwq-hfqc-58wv Microsoft.NETCore.App.Runtime.linux-arm (NuGet) Fixed in 3.1.18 Advisory →
  • Fix · GHSA-vgwq-hfqc-58wv Microsoft.NETCore.App.Runtime.linux-arm64 (NuGet) Fixed in 3.1.18 Advisory →
  • Fix · GHSA-vgwq-hfqc-58wv Microsoft.NETCore.App.Runtime.linux-musl-arm64 (NuGet) Fixed in 3.1.18 Advisory →
  • Fix · GHSA-vgwq-hfqc-58wv Microsoft.NETCore.App.Runtime.linux-musl-x64 (NuGet) Fixed in 3.1.18 Advisory →
  • Fix · GHSA-vgwq-hfqc-58wv Microsoft.NETCore.App.Runtime.linux-x64 (NuGet) Fixed in 3.1.18 Advisory →
  • Fix · GHSA-vgwq-hfqc-58wv Microsoft.NETCore.App.Runtime.osx-x64 (NuGet) Fixed in 3.1.18 Advisory →
  • Fix · GHSA-vgwq-hfqc-58wv Microsoft.NETCore.App.Runtime.rhel.6-x64 (NuGet) Fixed in 3.1.18 Advisory →
  • Fix · GHSA-vgwq-hfqc-58wv Microsoft.NETCore.App.Runtime.win-arm (NuGet) Fixed in 3.1.18 Advisory →
  • Fix · GHSA-vgwq-hfqc-58wv Microsoft.NETCore.App.Runtime.win-arm64 (NuGet) Fixed in 3.1.18 Advisory →
  • Fix · GHSA-vgwq-hfqc-58wv Microsoft.NETCore.App.Runtime.win-x64 (NuGet) Fixed in 3.1.18 Advisory →
  • Fix · GHSA-vgwq-hfqc-58wv Microsoft.NETCore.App.Runtime.win-x86 (NuGet) Fixed in 3.1.18 Advisory →
  • Fix · GHSA-vgwq-hfqc-58wv Microsoft.NETCore.App.Runtime.linux-arm (NuGet) Fixed in 5.0.9 Advisory →
  • Fix · GHSA-vgwq-hfqc-58wv Microsoft.NETCore.App.Runtime.linux-arm64 (NuGet) Fixed in 5.0.9 Advisory →
  • Fix · GHSA-vgwq-hfqc-58wv Microsoft.NETCore.App.Runtime.linux-musl-arm (NuGet) Fixed in 5.0.9 Advisory →
  • Fix · GHSA-vgwq-hfqc-58wv Microsoft.NETCore.App.Runtime.linux-musl-arm64 (NuGet) Fixed in 5.0.9 Advisory →
  • Fix · GHSA-vgwq-hfqc-58wv Microsoft.NETCore.App.Runtime.linux-musl-x64 (NuGet) Fixed in 5.0.9 Advisory →
  • Fix · GHSA-vgwq-hfqc-58wv Microsoft.NETCore.App.Runtime.linux-x64 (NuGet) Fixed in 5.0.9 Advisory →
  • Fix · GHSA-vgwq-hfqc-58wv Microsoft.NETCore.App.Runtime.Mono.linux-arm (NuGet) Fixed in 5.0.9 Advisory →
  • Fix · GHSA-vgwq-hfqc-58wv Microsoft.NETCore.App.Runtime.Mono.linux-arm64 (NuGet) Fixed in 5.0.9 Advisory →
  • Fix · GHSA-vgwq-hfqc-58wv Microsoft.NETCore.App.Runtime.Mono.linux-musl-x64 (NuGet) Fixed in 5.0.9 Advisory →
  • Fix · GHSA-vgwq-hfqc-58wv Microsoft.NETCore.App.Runtime.Mono.linux-x64 (NuGet) Fixed in 5.0.9 Advisory →
  • Fix · GHSA-vgwq-hfqc-58wv Microsoft.NETCore.App.Runtime.Mono.LLVM.AOT.linux-arm64 (NuGet) Fixed in 5.0.9 Advisory →
  • Fix · GHSA-vgwq-hfqc-58wv Microsoft.NETCore.App.Runtime.Mono.LLVM.AOT.linux-x64 (NuGet) Fixed in 5.0.9 Advisory →
  • Fix · GHSA-vgwq-hfqc-58wv Microsoft.NETCore.App.Runtime.Mono.LLVM.AOT.osx-x64 (NuGet) Fixed in 5.0.9 Advisory →
  • Fix · GHSA-vgwq-hfqc-58wv Microsoft.NETCore.App.Runtime.Mono.LLVM.linux-arm64 (NuGet) Fixed in 5.0.9 Advisory →
  • Fix · GHSA-vgwq-hfqc-58wv Microsoft.NETCore.App.Runtime.Mono.LLVM.linux-x64 (NuGet) Fixed in 5.0.9 Advisory →
  • Fix · GHSA-vgwq-hfqc-58wv Microsoft.NETCore.App.Runtime.Mono.LLVM.osx-x64 (NuGet) Fixed in 5.0.9 Advisory →
  • Fix · GHSA-vgwq-hfqc-58wv Microsoft.NETCore.App.Runtime.Mono.osx-x64 (NuGet) Fixed in 5.0.9 Advisory →
  • Fix · GHSA-vgwq-hfqc-58wv Microsoft.NETCore.App.Runtime.osx-x64 (NuGet) Fixed in 5.0.9 Advisory →
  • Fix · GHSA-vgwq-hfqc-58wv Microsoft.NETCore.App.Runtime.win-arm (NuGet) Fixed in 5.0.9 Advisory →
  • Fix · GHSA-vgwq-hfqc-58wv Microsoft.NETCore.App.Runtime.win-arm64 (NuGet) Fixed in 5.0.9 Advisory →
  • Fix · GHSA-vgwq-hfqc-58wv Microsoft.NETCore.App.Runtime.win-x64 (NuGet) Fixed in 5.0.9 Advisory →
  • Fix · GHSA-vgwq-hfqc-58wv Microsoft.NETCore.App.Runtime.win-x86 (NuGet) Fixed in 5.0.9 Advisory →

Red Hat 6 advisories

  • RHSA-2021:3148 Released 2021-08-12 · Red Hat rating Important
    .NET 5.0 security and bugfix update
    • Red Hat Enterprise Linux AppStream (v. 8) aspnetcore-runtime-5.0-5.0.9-1.el8_4, aspnetcore-targeting-pack-5.0-5.0.9-1.el8_4, dotnet-5.0.206-1.el8_4 +9
  • RHSA-2021:3147 Released 2021-08-12 · Red Hat rating Important
    .NET 5.0 on RHEL 7 security and bugfix update
    • .NET Core on Red Hat Enterprise Linux ComputeNode (v. 7) rh-dotnet50-aspnetcore-runtime-5.0-5.0.9-1.el7_9, rh-dotnet50-aspnetcore-targeting-pack-5.0-5.0.9-1.el7_9, rh-dotnet50-dotnet-5.0.206-1.el7_9 +8
    • .NET Core on Red Hat Enterprise Linux Server (v. 7) rh-dotnet50-aspnetcore-runtime-5.0-5.0.9-1.el7_9, rh-dotnet50-aspnetcore-targeting-pack-5.0-5.0.9-1.el7_9, rh-dotnet50-dotnet-5.0.206-1.el7_9 +8
    • .NET Core on Red Hat Enterprise Linux Workstation (v. 7) rh-dotnet50-aspnetcore-runtime-5.0-5.0.9-1.el7_9, rh-dotnet50-aspnetcore-targeting-pack-5.0-5.0.9-1.el7_9, rh-dotnet50-dotnet-5.0.206-1.el7_9 +8
  • RHSA-2021:3145 Released 2021-08-11 · Red Hat rating Low
    .NET Core 2.1 security and bugfix update
    • Red Hat Enterprise Linux AppStream (v. 8) dotnet-2.1.525-1.el8_4, dotnet-host-fxr-2.1-2.1.29-1.el8_4, dotnet-runtime-2.1-2.1.29-1.el8_4 +2
Show 3 more Red Hat advisories
  • RHSA-2021:3142 Released 2021-08-11 · Red Hat rating Important
    .NET Core 3.1 security and bugfix update
    • Red Hat Enterprise Linux AppStream (v. 8) aspnetcore-runtime-3.1-3.1.18-1.el8_4, aspnetcore-targeting-pack-3.1-3.1.18-1.el8_4, dotnet-apphost-pack-3.1-3.1.18-1.el8_4 +6
  • RHSA-2021:3144 Released 2021-08-11 · Red Hat rating Low
    .NET Core 2.1 on Red Hat Enterprise Linux security and bugfix update
    • .NET Core on Red Hat Enterprise Linux ComputeNode (v. 7) rh-dotnet21-2.1-28.el7_9, rh-dotnet21-dotnet-2.1.525-1.el7_9, rh-dotnet21-dotnet-host-2.1.29-1.el7_9 +4
    • .NET Core on Red Hat Enterprise Linux Server (v. 7) rh-dotnet21-2.1-28.el7_9, rh-dotnet21-dotnet-2.1.525-1.el7_9, rh-dotnet21-dotnet-host-2.1.29-1.el7_9 +4
    • .NET Core on Red Hat Enterprise Linux Workstation (v. 7) rh-dotnet21-2.1-28.el7_9, rh-dotnet21-dotnet-2.1.525-1.el7_9, rh-dotnet21-dotnet-host-2.1.29-1.el7_9 +4
  • RHSA-2021:3143 Released 2021-08-11 · Red Hat rating Important
    .NET Core 3.1 on RHEL 7 security and bugfix update
    • .NET Core on Red Hat Enterprise Linux ComputeNode (v. 7) rh-dotnet31-aspnetcore-runtime-3.1-3.1.18-1.el7_9, rh-dotnet31-aspnetcore-targeting-pack-3.1-3.1.18-1.el7_9, rh-dotnet31-dotnet-3.1.118-1.el7_9 +8
    • .NET Core on Red Hat Enterprise Linux Server (v. 7) rh-dotnet31-aspnetcore-runtime-3.1-3.1.18-1.el7_9, rh-dotnet31-aspnetcore-targeting-pack-3.1-3.1.18-1.el7_9, rh-dotnet31-dotnet-3.1.118-1.el7_9 +8
    • .NET Core on Red Hat Enterprise Linux Workstation (v. 7) rh-dotnet31-aspnetcore-runtime-3.1-3.1.18-1.el7_9, rh-dotnet31-aspnetcore-targeting-pack-3.1-3.1.18-1.el7_9, rh-dotnet31-dotnet-3.1.118-1.el7_9 +8

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
.NET Core on Red Hat Enterprise Linux ComputeNode (v. 7)Fixed RHSA-2021:3143, RHSA-2021:3144, RHSA-2021:3147
.NET Core on Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2021:3143, RHSA-2021:3144, RHSA-2021:3147
.NET Core on Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2021:3143, RHSA-2021:3144, RHSA-2021:3147
Red Hat Enterprise Linux AppStream (v. 8)Fixed RHSA-2021:3142, RHSA-2021:3145, RHSA-2021:3148

Microsoft

Microsoft's page for this CVE →

Impact
Information Disclosure
Exploited
No
Publicly disclosed
No
Exploitability
Exploitation Less Likely
ProductStatusPlan or fix
.NET 5.0Fixed 5.0.9 · Security Update
.NET Core 2.1Fixed 2.1.30 · Security Update
.NET Core 3.1Fixed 3.1.18 · Security Update
Microsoft Visual Studio 2017 version 15.9 (includes 15.0 - 15.8)Fixed 15.9.38 · Security Update
Microsoft Visual Studio 2019 version 16.10 (includes 16.0 - 16.9)Fixed 16.10.5 · Security Update
Microsoft Visual Studio 2019 version 16.4 (includes 16.0 - 16.3)Fixed 16.4.25 · Security Update
Microsoft Visual Studio 2019 version 16.7 (includes 16.0 – 16.6)Fixed 16.7.18 · Security Update
Microsoft Visual Studio 2019 version 16.9 (includes 16.0 - 16.8)Fixed 16.9.10 · Security Update
PowerShell 7.0Fixed 7.0.7 · Security Update
PowerShell 7.1Fixed 7.1.4 · Security Update

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-34485
  2. 2026-10-03 Alias added: GHSA-vgwq-hfqc-58wv
  3. 2026-10-07 CVSS score added · CISA ADP
  4. 2026-10-07 Weakness changed · CISA ADP
  5. 2026-10-07 CISA SSVC decision points changed

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