CVE-2026-96957 .NET Security Feature Bypass Vulnerability
An attacker can bypass security features by exploiting improper cryptographic signature verification in the .NET runtime.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2026-96957?
CVE-2026-96957 is a high-severity vulnerability in Microsoft .Net, published on 13 Oct 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
Improper verification of cryptographic signature in .NET allows an unauthorized attacker to bypass a security feature over a network.
Weakness: CWE-347
Which versions are affected by CVE-2026-96957?
2 open source packages ship an affected version, including dotnet and dotnet-sdk. It affects 3 products.
| Package | Affected | Fixed in |
|---|---|---|
dotnet Bitnami | From 10.0.0 | 10.0.13 |
dotnet-sdk Bitnami | From 10.0.0 | 10.0.13 |
Products include Microsoft .Net, Microsoft Visual Studio 2022, Microsoft Visual Studio 2026.
How do I fix CVE-2026-96957?
Upgrade dotnet to 10.0.13 or later.
Is CVE-2026-96957 being exploited?
There is no known exploitation of CVE-2026-96957 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-2026-69439 .NET and Visual Studio Elevation of Privilege Vulnerability
- CVE-2026-71328 .NET and Visual Studio Remote Code Execution Vulnerability
- CVE-2026-47300 ASP.NET Core Elevation of Privilege Vulnerability
Sources
Also known as BIT-dotnet-2026-96957, BIT-dotnet-sdk-2026-96957, UBUNTU-CVE-2026-96957.