CVE-2024-21404 .NET Denial of Service Vulnerability
High 7.5
Published
Updated
Check this codebase for CVE-2024-21404 and fix it if it is affected.
What it is: CVE-2024-21404 is a high-severity vulnerability in Microsoft Visual Studio 2022, published on 13 Feb 2024.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-21404 exists.
Affected packages and fixed versions:
- aspnet-core (Bitnami): affected from 6.0.0; fixed in 6.0.27, 7.0.16, 8.0.2
Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.
Reference: https://insights.sbomify.com/CVE-2024-21404/ (Markdown: https://insights.sbomify.com/CVE-2024-21404/index.md)
- Exploited in the wild
- Not known
- Fix
- Available
What is CVE-2024-21404?
CVE-2024-21404 is a high-severity vulnerability in Microsoft Visual Studio 2022, published on 13 Feb 2024.
Official description
.NET Denial of Service Vulnerability
Weakness: CWE-476
Which versions are affected by CVE-2024-21404?
1 open source package ship an affected version, including aspnet-core. It affects 2 products.
| Package | Affected | Fixed in |
|---|---|---|
aspnet-core Bitnami | From 6.0.0 | 6.0.27, 7.0.16, 8.0.2 |
Linux distribution packages (39)
aspnetcore-runtime-6.0 Red Hat:rhel_eus:8.6::appstream | All versions | 0:6.0.27-1.el8_6 |
aspnetcore-targeting-pack-6.0 Red Hat:rhel_eus:8.6::appstream | All versions | 0:6.0.27-1.el8_6 |
dotnet Red Hat:rhel_eus:8.6::appstream | All versions | 0:6.0.127-1.el8_6 |
dotnet-apphost-pack-6.0 Red Hat:rhel_eus:8.6::appstream | All versions | 0:6.0.27-1.el8_6 |
dotnet-apphost-pack-6.0-debuginfo Red Hat:rhel_eus:8.6::appstream | All versions | 0:6.0.27-1.el8_6 |
dotnet-host Red Hat:rhel_eus:8.6::appstream | All versions | 0:6.0.27-1.el8_6 |
dotnet-host-debuginfo Red Hat:rhel_eus:8.6::appstream | All versions | 0:6.0.27-1.el8_6 |
dotnet-hostfxr-6.0 Red Hat:rhel_eus:8.6::appstream | All versions | 0:6.0.27-1.el8_6 |
dotnet-hostfxr-6.0-debuginfo Red Hat:rhel_eus:8.6::appstream | All versions | 0:6.0.27-1.el8_6 |
dotnet-runtime-6.0 Red Hat:rhel_eus:8.6::appstream | All versions | 0:6.0.27-1.el8_6 |
dotnet-runtime-6.0-debuginfo Red Hat:rhel_eus:8.6::appstream | All versions | 0:6.0.27-1.el8_6 |
dotnet-sdk-6.0 Red Hat:rhel_eus:8.6::appstream | All versions | 0:6.0.127-1.el8_6 |
dotnet-sdk-6.0-debuginfo Red Hat:rhel_eus:8.6::appstream | All versions | 0:6.0.127-1.el8_6 |
dotnet-targeting-pack-6.0 Red Hat:rhel_eus:8.6::appstream | All versions | 0:6.0.27-1.el8_6 |
dotnet-templates-6.0 Red Hat:rhel_eus:8.6::appstream | All versions | 0:6.0.127-1.el8_6 |
dotnet6.0 Red Hat:rhel_eus:8.6::appstream | All versions | 0:6.0.127-1.el8_6 |
dotnet6.0-debuginfo Red Hat:rhel_eus:8.6::appstream | All versions | 0:6.0.127-1.el8_6 |
dotnet6.0-debugsource Red Hat:rhel_eus:8.6::appstream | All versions | 0:6.0.127-1.el8_6 |
netstandard-targeting-pack-2.1 Red Hat:rhel_eus:8.6::appstream | All versions | 0:6.0.127-1.el8_6 |
dotnet-apphost-pack-6.0-debuginfo Red Hat:rhel_eus:8.6::crb | All versions | 0:6.0.27-1.el8_6 |
dotnet-host-debuginfo Red Hat:rhel_eus:8.6::crb | All versions | 0:6.0.27-1.el8_6 |
dotnet-hostfxr-6.0-debuginfo Red Hat:rhel_eus:8.6::crb | All versions | 0:6.0.27-1.el8_6 |
dotnet-runtime-6.0-debuginfo Red Hat:rhel_eus:8.6::crb | All versions | 0:6.0.27-1.el8_6 |
dotnet-sdk-6.0-debuginfo Red Hat:rhel_eus:8.6::crb | All versions | 0:6.0.127-1.el8_6 |
dotnet-sdk-6.0-source-built-artifacts Red Hat:rhel_eus:8.6::crb | All versions | 0:6.0.127-1.el8_6 |
dotnet6.0-debuginfo Red Hat:rhel_eus:8.6::crb | All versions | 0:6.0.127-1.el8_6 |
dotnet6.0-debugsource Red Hat:rhel_eus:8.6::crb | All versions | 0:6.0.127-1.el8_6 |
aspnetcore-runtime-6.0 Red Hat:rhel_eus:8.8::appstream | All versions | 0:6.0.27-1.el8_8 |
aspnetcore-runtime-7.0 Red Hat:rhel_eus:8.8::appstream | All versions | 0:7.0.16-1.el8_8 |
aspnetcore-targeting-pack-6.0 Red Hat:rhel_eus:8.8::appstream | All versions | 0:6.0.27-1.el8_8 |
aspnetcore-targeting-pack-7.0 Red Hat:rhel_eus:8.8::appstream | All versions | 0:7.0.16-1.el8_8 |
dotnet Red Hat:rhel_eus:8.8::appstream | All versions | 0:7.0.116-1.el8_8 |
dotnet-apphost-pack-6.0 Red Hat:rhel_eus:8.8::appstream | All versions | 0:6.0.27-1.el8_8 |
dotnet-apphost-pack-6.0-debuginfo Red Hat:rhel_eus:8.8::appstream | All versions | 0:6.0.27-1.el8_8 |
dotnet-apphost-pack-7.0 Red Hat:rhel_eus:8.8::appstream | All versions | 0:7.0.16-1.el8_8 |
dotnet-apphost-pack-7.0-debuginfo Red Hat:rhel_eus:8.8::appstream | All versions | 0:7.0.16-1.el8_8 |
dotnet-host Red Hat:rhel_eus:8.8::appstream | All versions | 0:7.0.16-1.el8_8 |
dotnet-host-debuginfo Red Hat:rhel_eus:8.8::appstream | All versions | 0:7.0.16-1.el8_8 |
dotnet-hostfxr-6.0 Red Hat:rhel_eus:8.8::appstream | All versions | 0:6.0.27-1.el8_8 |
Products include Microsoft Asp.net Core, Microsoft Visual Studio 2022.
How do I fix CVE-2024-21404?
Upgrade aspnet-core to a fixed version for your release line: 6.0.27, 7.0.16 or 8.0.2.
Is CVE-2024-21404 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-21404 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 BELL-CVE-2024-21404, BIT-aspnet-core-2024-21404, CLEANSTART-2025-MP76988, GHSA-q5x8-3vm4-xrh9, RHSA-2024:1552, RHSA-2024:1553 and 5 more.