Microsoft.Native.Quic.MsQuic.Schannel 2.1.5

Prefix Reserved
Details
Advisory: https://github.com/advisories/GHSA-gvvw-8j96-8g5r Severity: critical
Advisory: https://github.com/advisories/GHSA-xh5m-8qqp-c5x7 Severity: high
Advisory: https://github.com/advisories/GHSA-fr44-546p-7xcp Severity: high
Advisory: https://github.com/advisories/GHSA-2x7m-gf85-3745 Severity: high
Additional Details

Please see https://github.com/microsoft/msquic/releases/tag/v2.2.3 for more details.

This package has a SemVer 2.0.0 package version: 2.1.5+308464.
There is a newer version of this package available.
See the version list below for details. 
dotnet add package Microsoft.Native.Quic.MsQuic.Schannel --version 2.1.5
                    


                    

                
NuGet\Install-Package Microsoft.Native.Quic.MsQuic.Schannel -Version 2.1.5
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package. 
<PackageReference Include="Microsoft.Native.Quic.MsQuic.Schannel" Version="2.1.5" />
For projects that support PackageReference, copy this XML node into the project file to reference the package. 
<PackageVersion Include="Microsoft.Native.Quic.MsQuic.Schannel" Version="2.1.5" />
                    


                            Directory.Packages.props
                        

                    

                
<PackageReference Include="Microsoft.Native.Quic.MsQuic.Schannel" />
                    


                            Project file
For projects that support Central Package Management (CPM), copy this XML node into the solution Directory.Packages.props file to version the package. 
paket add Microsoft.Native.Quic.MsQuic.Schannel --version 2.1.5
                    


                    

                
#r "nuget: Microsoft.Native.Quic.MsQuic.Schannel, 2.1.5"
#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package. 
#:package Microsoft.Native.Quic.MsQuic.Schannel@2.1.5
#:package directive can be used in C# file-based apps starting in .NET 10 preview 4. Copy this into a .cs file before any lines of code to reference the package. 
#addin nuget:?package=Microsoft.Native.Quic.MsQuic.Schannel&version=2.1.5
                    


                            Install as a Cake Addin
                        

                    

                
#tool nuget:?package=Microsoft.Native.Quic.MsQuic.Schannel&version=2.1.5
                    


                            Install as a Cake Tool

<h1 align="center"><img src="docs/images/readme_logo.png" width="500" alt="MsQuic logo"/></h1>

Perf Dashboard Test Status Code Coverage CodeQL Language grade: C/C++ CII Best Practices Discord crates.io nuget

MsQuic is a Microsoft implementation of the IETF QUIC protocol. It is cross-platform, written in C and designed to be a general purpose QUIC library. MsQuic also has C++ API wrapper classes and exposes interop layers for both Rust and C#.

Protocol Features

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QUIC has many benefits when compared to existing "TLS over TCP" scenarios:

  • All packets are encrypted and handshake is authenticated with TLS 1.3.
  • Parallel streams of (reliable and unreliable) application data.
  • Exchange application data in the first round trip (0-RTT).
  • Improved congestion control and loss recovery.
  • Survives a change in the clients IP address or port.
  • Stateless load balancing.
  • Easily extendable for new features and extensions.

Library Features

MsQuic has several features that differentiates it from other QUIC implementations:

  • Optimized for client and server.
  • Optimized for maximal throughput and minimal latency.
  • Asynchronous IO.
  • Receive side scaling (RSS) support.
  • UDP send and receive coalescing support.

Documentation

Contributing

For information on contributing, please see our contribution guidlines. Feel free to take a look at our Good First Issues list if you're looking for somewhere to start. If you'd just like to talk, come chat with us on Discord.

Product Compatible and additional computed target framework versions.
native native is compatible. 
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.

This package has no dependencies.

NuGet packages

This package is not used by any NuGet packages.

GitHub repositories (3)

Showing the top 3 popular GitHub repositories that depend on Microsoft.Native.Quic.MsQuic.Schannel:

Repository Stars
dotnet/runtime
.NET is a cross-platform runtime for cloud, mobile, desktop, and IoT apps.
dotnet/dotnet
Home of .NET's Virtual Monolithic Repository which includes all the code needed to build the .NET SDK.
VSadov/Satori
Experimenting with dotnet runtime.
Version Downloads Last Updated
2.5.9-rc 17 6/5/2026
2.5.8 88 5/11/2026
2.5.8-rc 32 5/7/2026
2.5.7 846 4/15/2026
2.5.7-rc2 79 4/13/2026 2.5.7-rc2 is deprecated because it has critical bugs; 2.5.7-rc2 has at least one vulnerability with critical severity.
2.5.7-rc 78 1/22/2026 2.5.7-rc is deprecated because it has critical bugs; 2.5.7-rc has at least one vulnerability with critical severity.
2.5.6 538 12/12/2025 2.5.6 is deprecated because it has critical bugs; 2.5.6 has at least one vulnerability with critical severity.
2.5.6-rc 82 12/8/2025 2.5.6-rc is deprecated because it has critical bugs; 2.5.6-rc has at least one vulnerability with critical severity.
2.5.5 191 10/24/2025 2.5.5 is deprecated because it has critical bugs; 2.5.5 has at least one vulnerability with critical severity.
2.4.18 325 4/15/2026
2.4.18-rc 77 4/13/2026 2.4.18-rc is deprecated because it has critical bugs; 2.4.18-rc has at least one vulnerability with critical severity.
2.4.17 101 12/12/2025 2.4.17 is deprecated because it has critical bugs; 2.4.17 has at least one vulnerability with critical severity.
2.4.17-rc2 84 12/8/2025 2.4.17-rc2 is deprecated because it has critical bugs; 2.4.17-rc2 has at least one vulnerability with critical severity.
2.4.17-rc 78 11/25/2025 2.4.17-rc is deprecated because it has critical bugs; 2.4.17-rc has at least one vulnerability with critical severity.
2.4.16 434 10/24/2025 2.4.16 is deprecated because it has critical bugs; 2.4.16 has at least one vulnerability with critical severity.
2.1.5 638 11/4/2022 2.1.5 is deprecated because it has critical bugs; 2.1.5 has at least one vulnerability with critical severity.
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