# CVE-2023-36799: .NET Core and Visual Studio Denial of Service Vulnerability > Attackers can cause a denial of service in .NET Core and Visual Studio environments, requiring users to apply security patches. - **Severity:** Medium 6.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C`) - **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:** Yes - **Published:** 12 Sep 2023 - **Updated:** 30 Oct 2025 - **Also known as:** ALSA-2023:5143, ALSA-2023:5144, ALSA-2023:5145, ALSA-2023:5146, ALSA-2023:6242, ALSA-2023:6245, ALSA-2023:6246, ALSA-2023:6247, BIT-dotnet-2023-36799, BIT-dotnet-sdk-2023-36799, CLEANSTART-2025-CF48429, GHSA-h3hv-63q5-jgpr, RHSA-2023:5142, RHSA-2023:5143, RHSA-2023:5144, RHSA-2023:5145, RHSA-2023:5146, RHSA-2023:6242, RHSA-2023:6245, RHSA-2023:6246, RHSA-2023:6247, RHSA-2023:6249, RLSA-2023:5144, RLSA-2023:6242, RLSA-2023:6245, UBUNTU-CVE-2023-36799, USN-6362-1, USN-6362-2, USN-6438-2 ## What is CVE-2023-36799? CVE-2023-36799 is a medium-severity denial of service vulnerability in Microsoft .Net, published on 12 Sep 2023. 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 .NET Core and Visual Studio Denial of Service Vulnerability Weakness: CWE-400 (Uncontrolled Resource Consumption) ## Which versions are affected by CVE-2023-36799? 26 open source packages ship an affected version, including Microsoft.NETCore.App.Runtime.linux-arm, dotnet and dotnet-sdk. It affects 2 products. | Package | Ecosystem | Affected | Fixed in | | --- | --- | --- | --- | | `Microsoft.NETCore.App.Runtime.linux-arm` | NuGet | From 6.0.0 | 6.0.22 | | `Microsoft.NETCore.App.Runtime.linux-arm` | NuGet | From 6.0.0 | 6.0.22 | | `Microsoft.NETCore.App.Runtime.linux-arm` | NuGet | From 7.0.0 | 7.0.11 | | `Microsoft.NETCore.App.Runtime.linux-arm` | NuGet | From 7.0.0 | 7.0.11 | | `dotnet` | Bitnami | From 6.0.0 | 6.0.1, 7.0.1 | | `dotnet-sdk` | Bitnami | From 6.0.0 | 6.0.1, 7.0.1 | | `Microsoft.NETCore.App.Runtime.linux-arm64` | NuGet | From 6.0.0 | 6.0.22 | | `Microsoft.NETCore.App.Runtime.linux-arm64` | NuGet | From 6.0.0 | 6.0.22 | | `Microsoft.NETCore.App.Runtime.linux-arm64` | NuGet | From 7.0.0 | 7.0.11 | | `Microsoft.NETCore.App.Runtime.linux-arm64` | NuGet | From 7.0.0 | 7.0.11 | | `Microsoft.NETCore.App.Runtime.linux-musl-arm` | NuGet | From 6.0.0 | 6.0.22 | | `Microsoft.NETCore.App.Runtime.linux-musl-arm` | NuGet | From 6.0.0 | 6.0.22 | | `Microsoft.NETCore.App.Runtime.linux-musl-arm` | NuGet | From 7.0.0 | 7.0.11 | | `Microsoft.NETCore.App.Runtime.linux-musl-arm` | NuGet | From 7.0.0 | 7.0.11 | | `Microsoft.NETCore.App.Runtime.linux-musl-arm64` | NuGet | From 6.0.0 | 6.0.22 | | `Microsoft.NETCore.App.Runtime.linux-musl-arm64` | NuGet | From 6.0.0 | 6.0.22 | | `Microsoft.NETCore.App.Runtime.linux-musl-arm64` | NuGet | From 7.0.0 | 7.0.11 | | `Microsoft.NETCore.App.Runtime.linux-musl-arm64` | NuGet | From 7.0.0 | 7.0.11 | | `Microsoft.NETCore.App.Runtime.linux-musl-x64` | NuGet | From 6.0.0 | 6.0.22 | | `Microsoft.NETCore.App.Runtime.linux-musl-x64` | NuGet | From 6.0.0 | 6.0.22 | | `Microsoft.NETCore.App.Runtime.linux-musl-x64` | NuGet | From 7.0.0 | 7.0.11 | | `Microsoft.NETCore.App.Runtime.linux-musl-x64` | NuGet | From 7.0.0 | 7.0.11 | | `Microsoft.NETCore.App.Runtime.linux-x64` | NuGet | From 6.0.0 | 6.0.22 | | `Microsoft.NETCore.App.Runtime.linux-x64` | NuGet | From 6.0.0 | 6.0.22 | | `Microsoft.NETCore.App.Runtime.linux-x64` | NuGet | From 7.0.0 | 7.0.11 | | `Microsoft.NETCore.App.Runtime.linux-x64` | NuGet | From 7.0.0 | 7.0.11 | | `aspnetcore-runtime-6.0` | AlmaLinux:8 | All versions | 6.0.22-1.el8_8 | | `aspnetcore-runtime-6.0` | AlmaLinux:8 | All versions | 6.0.24-1.el8_8 | | `aspnetcore-runtime-7.0` | AlmaLinux:8 | All versions | 7.0.11-1.el8_8 | | `aspnetcore-runtime-7.0` | AlmaLinux:8 | All versions | 7.0.13-1.el8_8 | | `aspnetcore-targeting-pack-6.0` | AlmaLinux:8 | All versions | 6.0.22-1.el8_8 | | `aspnetcore-targeting-pack-6.0` | AlmaLinux:8 | All versions | 6.0.24-1.el8_8 | | `aspnetcore-targeting-pack-7.0` | AlmaLinux:8 | All versions | 7.0.11-1.el8_8 | | `aspnetcore-targeting-pack-7.0` | AlmaLinux:8 | All versions | 7.0.13-1.el8_8 | | `dotnet` | AlmaLinux:8 | All versions | 7.0.111-1.el8_8 | | `dotnet` | AlmaLinux:8 | All versions | 7.0.113-1.el8_8 | | `dotnet-apphost-pack-6.0` | AlmaLinux:8 | All versions | 6.0.22-1.el8_8 | | `dotnet-apphost-pack-6.0` | AlmaLinux:8 | All versions | 6.0.24-1.el8_8 | | `dotnet-apphost-pack-7.0` | AlmaLinux:8 | All versions | 7.0.11-1.el8_8 | | `dotnet-apphost-pack-7.0` | AlmaLinux:8 | All versions | 7.0.13-1.el8_8 | Products: Microsoft .Net, Microsoft Visual Studio 2022. ## How do I fix CVE-2023-36799? Upgrade Microsoft.NETCore.App.Runtime.linux-arm to a fixed version for your release line: 6.0.22 or 7.0.11. ## Is CVE-2023-36799 being exploited? There is no known exploitation of CVE-2023-36799 in the wild and no public exploit code. ## Other vulnerabilities in Microsoft .Net - [CVE-2024-43498](https://insights.sbomify.com/CVE-2024-43498/): .NET and Visual Studio Remote Code Execution Vulnerability (critical 9.8) - [CVE-2024-0057](https://insights.sbomify.com/CVE-2024-0057/): NET, .NET Framework, and Visual Studio Security Feature Bypass Vulnerability (critical 9.1) - [CVE-2026-96957](https://insights.sbomify.com/CVE-2026-96957/): .NET Security Feature Bypass Vulnerability (high 8.8) - [CVE-2026-69439](https://insights.sbomify.com/CVE-2026-69439/): .NET and Visual Studio Elevation of Privilege Vulnerability (high 8.8) - [CVE-2026-71328](https://insights.sbomify.com/CVE-2026-71328/): .NET and Visual Studio Remote Code Execution Vulnerability (high 8.8) ## Fix prompt for AI coding agents ```text Check this codebase for CVE-2023-36799 and fix it if it is affected. What it is: CVE-2023-36799 is a medium-severity denial of service vulnerability in Microsoft .Net, published on 12 Sep 2023. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link. Exploitation: There is no known exploitation of CVE-2023-36799 in the wild and no public exploit code. Affected packages and fixed versions: - Microsoft.NETCore.App.Runtime.linux-arm (NuGet): affected from 6.0.0; fixed in 6.0.22 - Microsoft.NETCore.App.Runtime.linux-arm (NuGet): affected from 6.0.0; fixed in 6.0.22 - Microsoft.NETCore.App.Runtime.linux-arm (NuGet): affected from 7.0.0; fixed in 7.0.11 - Microsoft.NETCore.App.Runtime.linux-arm (NuGet): affected from 7.0.0; fixed in 7.0.11 - dotnet (Bitnami): affected from 6.0.0; fixed in 6.0.1, 7.0.1 - dotnet-sdk (Bitnami): affected from 6.0.0; fixed in 6.0.1, 7.0.1 - Microsoft.NETCore.App.Runtime.linux-arm64 (NuGet): affected from 6.0.0; fixed in 6.0.22 - Microsoft.NETCore.App.Runtime.linux-arm64 (NuGet): affected from 6.0.0; fixed in 6.0.22 - Microsoft.NETCore.App.Runtime.linux-arm64 (NuGet): affected from 7.0.0; fixed in 7.0.11 - Microsoft.NETCore.App.Runtime.linux-arm64 (NuGet): affected from 7.0.0; fixed in 7.0.11 - Microsoft.NETCore.App.Runtime.linux-musl-arm (NuGet): affected from 6.0.0; fixed in 6.0.22 - Microsoft.NETCore.App.Runtime.linux-musl-arm (NuGet): affected from 6.0.0; fixed in 6.0.22 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-2023-36799/ (Markdown: https://insights.sbomify.com/CVE-2023-36799/index.md) ``` ## Sources - CVE record: https://www.cve.org/CVERecord?id=CVE-2023-36799 - NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-36799 - OSV: https://osv.dev/vulnerability/CVE-2023-36799 --- From sbomify Insights: https://insights.sbomify.com/CVE-2023-36799/ Summaries are generated and may contain mistakes; the official description above is the record.