{"answers":{"affected":"6 open source packages ship an affected version, including Microsoft.Native.Quic.MsQuic.OpenSSL, dotnet and dotnet-sdk. It affects 4 products.","exploited":"There is no known exploitation of CVE-2023-36435 in the wild and no public exploit code.","fix":"Upgrade Microsoft.Native.Quic.MsQuic.OpenSSL to 2.2.3 or later.","what":"CVE-2023-36435 is a high-severity denial of service vulnerability in Microsoft .Net, published on 10 Oct 2023. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2023-36435 and fix it if it is affected.\n\nWhat it is: CVE-2023-36435 is a high-severity denial of service vulnerability in Microsoft .Net, published on 10 Oct 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2023-36435 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- Microsoft.Native.Quic.MsQuic.OpenSSL (NuGet): affected all versions; fixed in 2.2.3\n- Microsoft.Native.Quic.MsQuic.OpenSSL (NuGet): affected all versions; fixed in 2.2.3\n- dotnet (Bitnami): affected from 7.0.0; fixed in 7.0.13\n- dotnet-sdk (Bitnami): affected from 7.0.0; fixed in 7.0.13\n- Microsoft.Native.Quic.MsQuic.Schannel (NuGet): affected all versions; fixed in 2.2.3\n- Microsoft.Native.Quic.MsQuic.Schannel (NuGet): affected all versions; fixed in 2.2.3\n\nTask:\n1. 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.\n2. 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.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2023-36435/ (Markdown: https://insights.sbomify.com/CVE-2023-36435/index.md)","id":"CVE-2023-36435","markdown":"https://insights.sbomify.com/CVE-2023-36435/index.md","name":"CVE-2023-36435","record":{"aliases":["BIT-dotnet-2023-36435","BIT-dotnet-sdk-2023-36435","GHSA-fr44-546p-7xcp"],"analysis":{"component_type":"operating_system","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Microsoft QUIC implementation","requires_auth":"none","summary":"Attackers can cause a denial of service in Microsoft QUIC implementations affecting Windows and .NET, requiring patches.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"microsoft","cpe":[{"product":".net","vendor":"microsoft"},{"product":"windows_11_21h2","vendor":"microsoft"},{"product":"windows_11_22h2","vendor":"microsoft"},{"product":"windows_server_2022","vendor":"microsoft"}],"cvss":{"score":7.5,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C","version":"3.1"},"cwes":[{"id":"CWE-400","name":"Uncontrolled Resource Consumption"}],"description":"Microsoft QUIC Denial of Service Vulnerability","ecosystems":["Bitnami","NuGet"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"Microsoft QUIC Denial of Service Vulnerability","id":"CVE-2023-36435","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Bitnami","product":"microsoft:.net","products":["microsoft:.net","microsoft:windows_11_21h2","microsoft:windows_11_22h2","microsoft:windows_server_2022"],"type":"denial_of_service","year":"2023"},"n_packages":6,"n_references":1,"next":{"headline":"Windows MSHTML Platform Remote Code Execution Vulnerability","id":"CVE-2023-36436"},"packages":[{"ecosystem":"Bitnami","fixed":["7.0.13"],"introduced":["7.0.0"],"last_affected":[],"package":"dotnet","purl":"pkg:bitnami/dotnet","source":"BIT-dotnet-2023-36435"},{"ecosystem":"Bitnami","fixed":["7.0.13"],"introduced":["7.0.0"],"last_affected":[],"package":"dotnet-sdk","purl":"pkg:bitnami/dotnet-sdk","source":"BIT-dotnet-sdk-2023-36435"},{"ecosystem":"NuGet","fixed":["2.2.3"],"introduced":["0"],"last_affected":[],"package":"Microsoft.Native.Quic.MsQuic.OpenSSL","purl":null,"source":"GHSA-fr44-546p-7xcp"},{"ecosystem":"NuGet","fixed":["2.2.3"],"introduced":["0"],"last_affected":[],"package":"Microsoft.Native.Quic.MsQuic.OpenSSL","purl":"pkg:nuget/Microsoft.Native.Quic.MsQuic.OpenSSL","source":"GHSA-fr44-546p-7xcp"},{"ecosystem":"NuGet","fixed":["2.2.3"],"introduced":["0"],"last_affected":[],"package":"Microsoft.Native.Quic.MsQuic.Schannel","purl":null,"source":"GHSA-fr44-546p-7xcp"},{"ecosystem":"NuGet","fixed":["2.2.3"],"introduced":["0"],"last_affected":[],"package":"Microsoft.Native.Quic.MsQuic.Schannel","purl":"pkg:nuget/Microsoft.Native.Quic.MsQuic.Schannel","source":"GHSA-fr44-546p-7xcp"}],"prev":{"headline":"Windows IIS Server Elevation of Privilege Vulnerability","id":"CVE-2023-36434"},"products":[".NET 7.0","PowerShell 7.3","Windows 11 version 21H2","Windows 11 version 22H2","Windows Server 2022"],"published":"2023-10-10","related":[{"cvss_score":9.8,"headline":".NET and Visual Studio Remote Code Execution Vulnerability","id":"CVE-2024-43498","kev_date_added":null,"published":"2024-11-12"},{"cvss_score":9.1,"headline":"NET, .NET Framework, and Visual Studio Security Feature Bypass Vulnerability","id":"CVE-2024-0057","kev_date_added":null,"published":"2024-01-09"},{"cvss_score":8.8,"headline":".NET Security Feature Bypass Vulnerability","id":"CVE-2026-96957","kev_date_added":null,"published":"2026-10-13"},{"cvss_score":8.8,"headline":".NET and Visual Studio Elevation of Privilege Vulnerability","id":"CVE-2026-69439","kev_date_added":null,"published":"2026-09-08"},{"cvss_score":8.8,"headline":".NET and Visual Studio Remote Code Execution Vulnerability","id":"CVE-2026-71328","kev_date_added":null,"published":"2026-09-08"},{"cvss_score":8.8,"headline":"ASP.NET Core Elevation of Privilege Vulnerability","id":"CVE-2026-47300","kev_date_added":null,"published":"2026-07-14"},{"cvss_score":8.8,"headline":"ASP.NET Core Elevation of Privilege Vulnerability","id":"CVE-2026-47303","kev_date_added":null,"published":"2026-07-14"}],"sources":[{"class":"attribution","licence":"Apache-2.0","name":"Bitnami","prefix":"BIT"},{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"yes","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2025-04-14","vendors":["Microsoft"]},"summary":"Attackers can cause a denial of service in Microsoft QUIC implementations affecting Windows and .NET, requiring patches.","url":"https://insights.sbomify.com/CVE-2023-36435/"}