CVE-2023-36038 ASP.NET Core Denial of Service Vulnerability
Attackers can cause a denial of service in ASP.NET Core applications, 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-2023-36038?
CVE-2023-36038 is a high-severity denial of service vulnerability in Microsoft Visual Studio 2022, published on 14 Nov 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
ASP.NET Core Denial of Service Vulnerability
Weakness: CWE-400
Which versions are affected by CVE-2023-36038?
3 open source packages ship an affected version, including aspnet-core, dotnet and dotnet-sdk. It affects 2 products.
| Package | Affected | Fixed in |
|---|---|---|
aspnet-core Bitnami | From 8.0.0 | 8.0.1 |
dotnet Bitnami | All versions to 8.0.0-rc1 | 8.0.0 |
dotnet-sdk Bitnami | All versions to 8.0.0-rc1 | 8.0.0 |
Products include Microsoft Asp.net Core, Microsoft Visual Studio 2022.
How do I fix CVE-2023-36038?
Upgrade aspnet-core to 8.0.1 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-2023-36038 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-36038 exists.
Other vulnerabilities in Microsoft Visual Studio 2022
- CVE-2025-55315 ASP.NET Security Feature Bypass Vulnerability
- CVE-2026-88092 ASP.NET Core Tampering Vulnerability
- CVE-2026-40372 ASP.NET Core Elevation of Privilege Vulnerability
- CVE-2021-43877 ASP.NET Core and Visual Studio Elevation of Privilege Vulnerability
- CVE-2020-0603 Remote code execution in ASP.NET Core
Sources
Also known as BIT-aspnet-core-2023-36038, BIT-dotnet-2023-36038, BIT-dotnet-sdk-2023-36038.