CVE-2024-43499 .NET and Visual Studio Denial of Service Vulnerability
Attackers can cause a denial of service in .NET and Visual Studio environments, requiring developers to apply security patches.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2024-43499?
CVE-2024-43499 is a high-severity denial of service vulnerability in Microsoft .Net, published on 12 Nov 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
.NET and Visual Studio Denial of Service Vulnerability
Which versions are affected by CVE-2024-43499?
4 open source packages ship an affected version, including System.Formats.Nrbf, dotnet and dotnet-sdk. It affects 2 products.
| Package | Affected | Fixed in |
|---|---|---|
System.Formats.Nrbf NuGet | All versions | 9.0.0 |
System.Formats.Nrbf NuGet | All versions | 9.0.0 |
dotnet Bitnami | From 9.0.0 | 9.0.1 |
dotnet-sdk Bitnami | From 9.0.0 | 9.0.1 |
Products include Microsoft .Net, Microsoft Visual Studio 2022.
How do I fix CVE-2024-43499?
Upgrade System.Formats.Nrbf to 9.0.0 or later.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2024-43499 being exploited?
There is no known exploitation of CVE-2024-43499 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-2024-43499, BIT-dotnet-sdk-2024-43499, GHSA-6x36-qxmj-rv4p, UBUNTU-CVE-2024-43499.