{"answers":{"affected":"24 open source packages ship an affected version, including Microsoft.NETCore.App.Runtime.win-arm64, Microsoft.NETCore.App.Runtime.win-x64 and Microsoft.NETCore.App.Runtime.win-x86.","exploited":"There is no known exploitation of CVE-2026-70197 in the wild and no public exploit code.","fix":"Upgrade Microsoft.NETCore.App.Runtime.win-arm64 to a fixed version for your release line: 10.0.13, 11.0.0-rc.2, 8.0.32 or 9.0.21.","what":"CVE-2026-70197 is a high-severity memory corruption vulnerability in Microsoft .NET 10.0 installed on Linux, published on 13 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-70197 and fix it if it is affected.\n\nWhat it is: CVE-2026-70197 is a high-severity memory corruption vulnerability in Microsoft .NET 10.0 installed on Linux, published on 13 Oct 2026. 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-2026-70197 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- Microsoft.NETCore.App.Runtime.win-arm64 (NuGet): affected from 10.0.0; fixed in 10.0.13\n- Microsoft.NETCore.App.Runtime.win-arm64 (NuGet): affected from 10.0.0; fixed in 10.0.13\n- Microsoft.NETCore.App.Runtime.win-arm64 (NuGet): affected from 11.0.0-preview.1; fixed in 11.0.0-rc.2\n- Microsoft.NETCore.App.Runtime.win-arm64 (NuGet): affected from 11.0.0-preview.1; fixed in 11.0.0-rc.2\n- Microsoft.NETCore.App.Runtime.win-arm64 (NuGet): affected from 8.0.0; fixed in 8.0.32\n- Microsoft.NETCore.App.Runtime.win-arm64 (NuGet): affected from 8.0.0; fixed in 8.0.32\n- Microsoft.NETCore.App.Runtime.win-arm64 (NuGet): affected from 9.0.0; fixed in 9.0.21\n- Microsoft.NETCore.App.Runtime.win-arm64 (NuGet): affected from 9.0.0; fixed in 9.0.21\n- Microsoft.NETCore.App.Runtime.win-x64 (NuGet): affected from 10.0.0; fixed in 10.0.13\n- Microsoft.NETCore.App.Runtime.win-x64 (NuGet): affected from 10.0.0; fixed in 10.0.13\n- Microsoft.NETCore.App.Runtime.win-x64 (NuGet): affected from 11.0.0-preview.1; fixed in 11.0.0-rc.2\n- Microsoft.NETCore.App.Runtime.win-x64 (NuGet): affected from 11.0.0-preview.1; fixed in 11.0.0-rc.2\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-2026-70197/ (Markdown: https://insights.sbomify.com/CVE-2026-70197/index.md)","id":"CVE-2026-70197","markdown":"https://insights.sbomify.com/CVE-2026-70197/index.md","name":"CVE-2026-70197","record":{"aliases":["GHSA-4mpw-cpwj-hxxj","UBUNTU-CVE-2026-70197"],"analysis":{"component_type":"library","fix_type":"patch","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":".NET runtime","requires_auth":"none","summary":"An out-of-bounds write in .NET allows remote attackers to execute arbitrary code, requiring immediate patching for all affected versions.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"microsoft","cpe":[],"cvss":{"score":8.1,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","version":"3.1"},"cwes":[{"id":"CWE-787","name":"Out-of-bounds Write"}],"description":"Out-of-bounds write in .NET allows an unauthorized attacker to execute code over a network.","ecosystems":["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":".NET and Visual Studio Remote Code Execution Vulnerability","id":"CVE-2026-70197","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"NuGet","product":null,"products":[],"type":"memory_corruption","year":"2026"},"n_packages":24,"n_references":1,"next":{"headline":"Windows Push Notifications Elevation of Privilege Vulnerability","id":"CVE-2026-70198"},"packages":[{"ecosystem":"NuGet","fixed":["10.0.13"],"introduced":["10.0.0"],"last_affected":[],"package":"Microsoft.NETCore.App.Runtime.win-arm64","purl":null,"source":"GHSA-4mpw-cpwj-hxxj"},{"ecosystem":"NuGet","fixed":["10.0.13"],"introduced":["10.0.0"],"last_affected":[],"package":"Microsoft.NETCore.App.Runtime.win-arm64","purl":"pkg:nuget/Microsoft.NETCore.App.Runtime.win-arm64","source":"GHSA-4mpw-cpwj-hxxj"},{"ecosystem":"NuGet","fixed":["11.0.0-rc.2"],"introduced":["11.0.0-preview.1"],"last_affected":[],"package":"Microsoft.NETCore.App.Runtime.win-arm64","purl":null,"source":"GHSA-4mpw-cpwj-hxxj"},{"ecosystem":"NuGet","fixed":["11.0.0-rc.2"],"introduced":["11.0.0-preview.1"],"last_affected":[],"package":"Microsoft.NETCore.App.Runtime.win-arm64","purl":"pkg:nuget/Microsoft.NETCore.App.Runtime.win-arm64","source":"GHSA-4mpw-cpwj-hxxj"},{"ecosystem":"NuGet","fixed":["8.0.32"],"introduced":["8.0.0"],"last_affected":[],"package":"Microsoft.NETCore.App.Runtime.win-arm64","purl":null,"source":"GHSA-4mpw-cpwj-hxxj"},{"ecosystem":"NuGet","fixed":["8.0.32"],"introduced":["8.0.0"],"last_affected":[],"package":"Microsoft.NETCore.App.Runtime.win-arm64","purl":"pkg:nuget/Microsoft.NETCore.App.Runtime.win-arm64","source":"GHSA-4mpw-cpwj-hxxj"},{"ecosystem":"NuGet","fixed":["9.0.21"],"introduced":["9.0.0"],"last_affected":[],"package":"Microsoft.NETCore.App.Runtime.win-arm64","purl":null,"source":"GHSA-4mpw-cpwj-hxxj"},{"ecosystem":"NuGet","fixed":["9.0.21"],"introduced":["9.0.0"],"last_affected":[],"package":"Microsoft.NETCore.App.Runtime.win-arm64","purl":"pkg:nuget/Microsoft.NETCore.App.Runtime.win-arm64","source":"GHSA-4mpw-cpwj-hxxj"},{"ecosystem":"NuGet","fixed":["10.0.13"],"introduced":["10.0.0"],"last_affected":[],"package":"Microsoft.NETCore.App.Runtime.win-x64","purl":null,"source":"GHSA-4mpw-cpwj-hxxj"},{"ecosystem":"NuGet","fixed":["10.0.13"],"introduced":["10.0.0"],"last_affected":[],"package":"Microsoft.NETCore.App.Runtime.win-x64","purl":"pkg:nuget/Microsoft.NETCore.App.Runtime.win-x64","source":"GHSA-4mpw-cpwj-hxxj"},{"ecosystem":"NuGet","fixed":["11.0.0-rc.2"],"introduced":["11.0.0-preview.1"],"last_affected":[],"package":"Microsoft.NETCore.App.Runtime.win-x64","purl":null,"source":"GHSA-4mpw-cpwj-hxxj"},{"ecosystem":"NuGet","fixed":["11.0.0-rc.2"],"introduced":["11.0.0-preview.1"],"last_affected":[],"package":"Microsoft.NETCore.App.Runtime.win-x64","purl":"pkg:nuget/Microsoft.NETCore.App.Runtime.win-x64","source":"GHSA-4mpw-cpwj-hxxj"},{"ecosystem":"NuGet","fixed":["8.0.32"],"introduced":["8.0.0"],"last_affected":[],"package":"Microsoft.NETCore.App.Runtime.win-x64","purl":null,"source":"GHSA-4mpw-cpwj-hxxj"},{"ecosystem":"NuGet","fixed":["8.0.32"],"introduced":["8.0.0"],"last_affected":[],"package":"Microsoft.NETCore.App.Runtime.win-x64","purl":"pkg:nuget/Microsoft.NETCore.App.Runtime.win-x64","source":"GHSA-4mpw-cpwj-hxxj"},{"ecosystem":"NuGet","fixed":["9.0.21"],"introduced":["9.0.0"],"last_affected":[],"package":"Microsoft.NETCore.App.Runtime.win-x64","purl":null,"source":"GHSA-4mpw-cpwj-hxxj"},{"ecosystem":"NuGet","fixed":["9.0.21"],"introduced":["9.0.0"],"last_affected":[],"package":"Microsoft.NETCore.App.Runtime.win-x64","purl":"pkg:nuget/Microsoft.NETCore.App.Runtime.win-x64","source":"GHSA-4mpw-cpwj-hxxj"},{"ecosystem":"NuGet","fixed":["10.0.13"],"introduced":["10.0.0"],"last_affected":[],"package":"Microsoft.NETCore.App.Runtime.win-x86","purl":null,"source":"GHSA-4mpw-cpwj-hxxj"},{"ecosystem":"NuGet","fixed":["10.0.13"],"introduced":["10.0.0"],"last_affected":[],"package":"Microsoft.NETCore.App.Runtime.win-x86","purl":"pkg:nuget/Microsoft.NETCore.App.Runtime.win-x86","source":"GHSA-4mpw-cpwj-hxxj"},{"ecosystem":"NuGet","fixed":["11.0.0-rc.2"],"introduced":["11.0.0-preview.1"],"last_affected":[],"package":"Microsoft.NETCore.App.Runtime.win-x86","purl":null,"source":"GHSA-4mpw-cpwj-hxxj"},{"ecosystem":"NuGet","fixed":["11.0.0-rc.2"],"introduced":["11.0.0-preview.1"],"last_affected":[],"package":"Microsoft.NETCore.App.Runtime.win-x86","purl":"pkg:nuget/Microsoft.NETCore.App.Runtime.win-x86","source":"GHSA-4mpw-cpwj-hxxj"},{"ecosystem":"NuGet","fixed":["8.0.32"],"introduced":["8.0.0"],"last_affected":[],"package":"Microsoft.NETCore.App.Runtime.win-x86","purl":null,"source":"GHSA-4mpw-cpwj-hxxj"},{"ecosystem":"NuGet","fixed":["8.0.32"],"introduced":["8.0.0"],"last_affected":[],"package":"Microsoft.NETCore.App.Runtime.win-x86","purl":"pkg:nuget/Microsoft.NETCore.App.Runtime.win-x86","source":"GHSA-4mpw-cpwj-hxxj"},{"ecosystem":"NuGet","fixed":["9.0.21"],"introduced":["9.0.0"],"last_affected":[],"package":"Microsoft.NETCore.App.Runtime.win-x86","purl":null,"source":"GHSA-4mpw-cpwj-hxxj"},{"ecosystem":"NuGet","fixed":["9.0.21"],"introduced":["9.0.0"],"last_affected":[],"package":"Microsoft.NETCore.App.Runtime.win-x86","purl":"pkg:nuget/Microsoft.NETCore.App.Runtime.win-x86","source":"GHSA-4mpw-cpwj-hxxj"}],"prev":{"headline":"ASP.NET Core Denial of Service Vulnerability","id":"CVE-2026-70196"},"products":[".NET 10.0 installed on Linux",".NET 10.0 installed on Mac OS",".NET 10.0 installed on Windows",".NET 10.0 runtime",".NET 11.0 installed on Linux",".NET 11.0 installed on Mac OS",".NET 11.0 installed on Windows",".NET 11.0 runtime",".NET 8.0 installed on Linux",".NET 8.0 installed on Mac OS",".NET 8.0 installed on Windows",".NET 8.0 runtime",".NET 9.0 installed on Linux",".NET 9.0 installed on Mac OS",".NET 9.0 installed on Windows",".NET 9.0 runtime","Microsoft Visual Studio 2019 version 16.11","Microsoft Visual Studio 2022 version 17.14","Microsoft Visual Studio 2026 version 18.10","Microsoft Visual Studio 2026 version 18.11","Microsoft Visual Studio 2026 version 18.12"],"published":"2026-10-13","related":[],"sources":[{"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":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-10-29","vendors":["Microsoft"]},"summary":"An out-of-bounds write in .NET allows remote attackers to execute arbitrary code, requiring immediate patching for all affected versions.","url":"https://insights.sbomify.com/CVE-2026-70197/"}