High severity8.1NVD Advisory· Published Feb 25, 2021· Updated Jun 17, 2026

CVE-2021-26701

Description

.NET Core Remote Code Execution Vulnerability

LLM-synthesized narrative grounded in this CVE's description and references.

Versions sourced from the GitHub Security Advisory.

Package	Affected versions	Patched versions
System.Text.Encodings.WebNuGet	>= 4.0.0, < 4.5.1	4.5.1
System.Text.Encodings.WebNuGet	>= 4.6.0, < 4.7.2	4.7.2
System.Text.Encodings.WebNuGet	>= 5.0.0, < 5.0.1	5.0.1

osv-coords3 versions
pkg:bitnami/dotnet pkg:nuget/system.text.encodings.web pkg:bitnami/dotnet-sdk
>= 5.0.0, < 5.0.4+ 2 more
- (no CPE)range: >= 5.0.0, < 5.0.4
- (no CPE)range: >= 4.0.0, < 4.5.1
- (no CPE)range: >= 5.0.0, < 5.0.4
Microsoft/Net
cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:*
Range: >=5.0,<5.0.4
Microsoft/.net Core
cpe:2.3:a:microsoft:.net_core:*:*:*:*:*:*:*:*
Range: >=2.1,<2.1.28
Microsoft/Powershell Core2 versions
cpe:2.3:a:microsoft:powershell_core:7.0:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:microsoft:powershell_core:7.0:*:*:*:*:*:*:*
- cpe:2.3:a:microsoft:powershell_core:7.1:*:*:*:*:*:*:*
Microsoft/Visual Studio2 versions
cpe:2.3:a:microsoft:visual_studio_2019:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:microsoft:visual_studio_2019:*:*:*:*:*:*:*:*range: >=16.0,<=16.9
- cpe:2.3:a:microsoft:visual_studio_2019:-:*:*:*:*:macos:*:*
Fedoraproject/Fedora3 versions
cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*+ 2 more
- cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*