CVE-2026-47304 .NET Security Feature Bypass Vulnerability
An attacker can bypass security features by exploiting improper cryptographic signature verification in the .NET framework.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-47304?
CVE-2026-47304 is a high-severity vulnerability in Microsoft .Net, published on 14 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Improper verification of cryptographic signature in .NET allows an unauthorized attacker to bypass a security feature over a network.
Which versions are affected by CVE-2026-47304?
8 open source packages ship an affected version, including System.Security.Cryptography.Xml, dotnet and dotnet-sdk. It affects 6 products.
| Package | Affected | Fixed in |
|---|---|---|
System.Security.Cryptography.Xml NuGet | From 10.0.0 | 10.0.10 |
System.Security.Cryptography.Xml NuGet | From 10.0.0 | 10.0.10 |
System.Security.Cryptography.Xml NuGet | From 8.0.0 | 8.0.4 |
System.Security.Cryptography.Xml NuGet | From 8.0.0 | 8.0.4 |
System.Security.Cryptography.Xml NuGet | From 9.0.0 | 9.0.18 |
System.Security.Cryptography.Xml NuGet | From 9.0.0 | 9.0.18 |
2 more packages
dotnet Bitnami | From 8.0.0 | 8.0.29, 9.0.18, 10.0.6 |
dotnet-sdk Bitnami | From 8.0.0 | 8.0.29, 9.0.18, 10.0.6 |
Products include Microsoft .Net, Microsoft .Net Framework, Microsoft Visual Studio 2017, Microsoft Visual Studio 2019, Microsoft Visual Studio 2022, Microsoft Visual Studio 2026.
How do I fix CVE-2026-47304?
Upgrade System.Security.Cryptography.Xml to a fixed version for your release line: 10.0.10, 8.0.4 or 9.0.18.
Is CVE-2026-47304 being exploited?
There is no known exploitation of CVE-2026-47304 in the wild and no public exploit code.
Other vulnerabilities in Microsoft .Net
- CVE-2024-43498 .NET and Visual Studio Remote Code Execution Vulnerability
- CVE-2024-0057 NET, .NET Framework, and Visual Studio Security Feature Bypass Vulnerability
- CVE-2026-96957 .NET Security Feature Bypass Vulnerability
- CVE-2026-69439 .NET and Visual Studio Elevation of Privilege Vulnerability
- CVE-2026-71328 .NET and Visual Studio Remote Code Execution Vulnerability
Sources
Also known as BIT-dotnet-2026-47304, BIT-dotnet-sdk-2026-47304, ECHO-d94c-4487-662f, GHSA-g8r8-53c2-pm3f, MINI-7q2v-3hf9-p3g7, MINI-93h9-cw6p-63vv and 10 more.