{"answers":{"affected":"20 open source packages ship an affected version, including Microsoft.WindowsDesktop.App.Runtime.win-arm64, dotnet and dotnet-sdk. It affects 3 products.","exploited":"There is no known exploitation of CVE-2026-62871 in the wild and no public exploit code.","fix":"Upgrade Microsoft.WindowsDesktop.App.Runtime.win-arm64 to a fixed version for your release line: 10.0.11, 8.0.30 or 9.0.19.","what":"CVE-2026-62871 is a high-severity memory corruption vulnerability in Microsoft .Net, published on 11 Aug 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2026-62871 and fix it if it is affected.\n\nWhat it is: CVE-2026-62871 is a high-severity memory corruption vulnerability in Microsoft .Net, published on 11 Aug 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2026-62871 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- Microsoft.WindowsDesktop.App.Runtime.win-arm64 (NuGet): affected from 10.0.0; fixed in 10.0.11\n- Microsoft.WindowsDesktop.App.Runtime.win-arm64 (NuGet): affected from 10.0.0; fixed in 10.0.11\n- Microsoft.WindowsDesktop.App.Runtime.win-arm64 (NuGet): affected from 8.0.0; fixed in 8.0.30\n- Microsoft.WindowsDesktop.App.Runtime.win-arm64 (NuGet): affected from 8.0.0; fixed in 8.0.30\n- Microsoft.WindowsDesktop.App.Runtime.win-arm64 (NuGet): affected from 9.0.0; fixed in 9.0.19\n- Microsoft.WindowsDesktop.App.Runtime.win-arm64 (NuGet): affected from 9.0.0; fixed in 9.0.19\n- dotnet (Bitnami): affected from 8.0.0; fixed in 8.0.30, 9.0.19, 10.0.11\n- dotnet-sdk (Bitnami): affected from 8.0.0; fixed in 8.0.30, 9.0.19, 10.0.11\n- Microsoft.WindowsDesktop.App.Runtime.win-x64 (NuGet): affected from 10.0.0; fixed in 10.0.11\n- Microsoft.WindowsDesktop.App.Runtime.win-x64 (NuGet): affected from 10.0.0; fixed in 10.0.11\n- Microsoft.WindowsDesktop.App.Runtime.win-x64 (NuGet): affected from 8.0.0; fixed in 8.0.30\n- Microsoft.WindowsDesktop.App.Runtime.win-x64 (NuGet): affected from 8.0.0; fixed in 8.0.30\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-2026-62871/ (Markdown: https://insights.sbomify.com/CVE-2026-62871/index.md)","id":"CVE-2026-62871","markdown":"https://insights.sbomify.com/CVE-2026-62871/index.md","name":"CVE-2026-62871","record":{"aliases":["BELL-CVE-2026-62871","BIT-dotnet-2026-62871","BIT-dotnet-sdk-2026-62871","GHSA-vg44-h755-9hw7","MINI-g33h-qm58-qv65","MINI-rmvr-2x92-wcrv","UBUNTU-CVE-2026-62871"],"analysis":{"component_type":"library","fix_type":"patch","impacts":["code_execution","privilege_escalation"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":".NET runtime","requires_auth":"none","summary":"An out-of-bounds write in .NET allows local attackers to execute arbitrary code and escalate privileges.","user_interaction":"required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"microsoft","cpe":[{"product":".net","vendor":"microsoft"},{"product":"visual_studio_2022","vendor":"microsoft"},{"product":"visual_studio_2026","vendor":"microsoft"}],"cvss":{"score":7.8,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/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"},{"id":"CWE-122","name":"Heap-based Buffer Overflow"}],"description":"Out-of-bounds write in .NET allows an unauthorized attacker to execute code locally.","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":".NET Elevation of Privilege Vulnerability","id":"CVE-2026-62871","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Bitnami","product":"microsoft:.net","products":["microsoft:.net","microsoft:visual_studio_2022"],"type":"memory_corruption","year":"2026"},"n_packages":20,"n_references":1,"next":{"headline":".NET Framework Elevation of Privilege Vulnerability","id":"CVE-2026-62872"},"packages":[{"ecosystem":"Bitnami","fixed":["8.0.30","9.0.19","10.0.11"],"introduced":["8.0.0","9.0.0","10.0.0"],"last_affected":[],"package":"dotnet","purl":"pkg:bitnami/dotnet","source":"BIT-dotnet-2026-62871"},{"ecosystem":"Bitnami","fixed":["8.0.30","9.0.19","10.0.11"],"introduced":["8.0.0","9.0.0","10.0.0"],"last_affected":[],"package":"dotnet-sdk","purl":"pkg:bitnami/dotnet-sdk","source":"BIT-dotnet-sdk-2026-62871"},{"ecosystem":"NuGet","fixed":["10.0.11"],"introduced":["10.0.0"],"last_affected":[],"package":"Microsoft.WindowsDesktop.App.Runtime.win-arm64","purl":null,"source":"GHSA-vg44-h755-9hw7"},{"ecosystem":"NuGet","fixed":["10.0.11"],"introduced":["10.0.0"],"last_affected":[],"package":"Microsoft.WindowsDesktop.App.Runtime.win-arm64","purl":"pkg:nuget/Microsoft.WindowsDesktop.App.Runtime.win-arm64","source":"GHSA-vg44-h755-9hw7"},{"ecosystem":"NuGet","fixed":["8.0.30"],"introduced":["8.0.0"],"last_affected":[],"package":"Microsoft.WindowsDesktop.App.Runtime.win-arm64","purl":null,"source":"GHSA-vg44-h755-9hw7"},{"ecosystem":"NuGet","fixed":["8.0.30"],"introduced":["8.0.0"],"last_affected":[],"package":"Microsoft.WindowsDesktop.App.Runtime.win-arm64","purl":"pkg:nuget/Microsoft.WindowsDesktop.App.Runtime.win-arm64","source":"GHSA-vg44-h755-9hw7"},{"ecosystem":"NuGet","fixed":["9.0.19"],"introduced":["9.0.0"],"last_affected":[],"package":"Microsoft.WindowsDesktop.App.Runtime.win-arm64","purl":null,"source":"GHSA-vg44-h755-9hw7"},{"ecosystem":"NuGet","fixed":["9.0.19"],"introduced":["9.0.0"],"last_affected":[],"package":"Microsoft.WindowsDesktop.App.Runtime.win-arm64","purl":"pkg:nuget/Microsoft.WindowsDesktop.App.Runtime.win-arm64","source":"GHSA-vg44-h755-9hw7"},{"ecosystem":"NuGet","fixed":["10.0.11"],"introduced":["10.0.0"],"last_affected":[],"package":"Microsoft.WindowsDesktop.App.Runtime.win-x64","purl":null,"source":"GHSA-vg44-h755-9hw7"},{"ecosystem":"NuGet","fixed":["10.0.11"],"introduced":["10.0.0"],"last_affected":[],"package":"Microsoft.WindowsDesktop.App.Runtime.win-x64","purl":"pkg:nuget/Microsoft.WindowsDesktop.App.Runtime.win-x64","source":"GHSA-vg44-h755-9hw7"},{"ecosystem":"NuGet","fixed":["8.0.30"],"introduced":["8.0.0"],"last_affected":[],"package":"Microsoft.WindowsDesktop.App.Runtime.win-x64","purl":null,"source":"GHSA-vg44-h755-9hw7"},{"ecosystem":"NuGet","fixed":["8.0.30"],"introduced":["8.0.0"],"last_affected":[],"package":"Microsoft.WindowsDesktop.App.Runtime.win-x64","purl":"pkg:nuget/Microsoft.WindowsDesktop.App.Runtime.win-x64","source":"GHSA-vg44-h755-9hw7"},{"ecosystem":"NuGet","fixed":["9.0.19"],"introduced":["9.0.0"],"last_affected":[],"package":"Microsoft.WindowsDesktop.App.Runtime.win-x64","purl":null,"source":"GHSA-vg44-h755-9hw7"},{"ecosystem":"NuGet","fixed":["9.0.19"],"introduced":["9.0.0"],"last_affected":[],"package":"Microsoft.WindowsDesktop.App.Runtime.win-x64","purl":"pkg:nuget/Microsoft.WindowsDesktop.App.Runtime.win-x64","source":"GHSA-vg44-h755-9hw7"},{"ecosystem":"NuGet","fixed":["10.0.11"],"introduced":["10.0.0"],"last_affected":[],"package":"Microsoft.WindowsDesktop.App.Runtime.win-x86","purl":null,"source":"GHSA-vg44-h755-9hw7"},{"ecosystem":"NuGet","fixed":["10.0.11"],"introduced":["10.0.0"],"last_affected":[],"package":"Microsoft.WindowsDesktop.App.Runtime.win-x86","purl":"pkg:nuget/Microsoft.WindowsDesktop.App.Runtime.win-x86","source":"GHSA-vg44-h755-9hw7"},{"ecosystem":"NuGet","fixed":["8.0.30"],"introduced":["8.0.0"],"last_affected":[],"package":"Microsoft.WindowsDesktop.App.Runtime.win-x86","purl":null,"source":"GHSA-vg44-h755-9hw7"},{"ecosystem":"NuGet","fixed":["8.0.30"],"introduced":["8.0.0"],"last_affected":[],"package":"Microsoft.WindowsDesktop.App.Runtime.win-x86","purl":"pkg:nuget/Microsoft.WindowsDesktop.App.Runtime.win-x86","source":"GHSA-vg44-h755-9hw7"},{"ecosystem":"NuGet","fixed":["9.0.19"],"introduced":["9.0.0"],"last_affected":[],"package":"Microsoft.WindowsDesktop.App.Runtime.win-x86","purl":null,"source":"GHSA-vg44-h755-9hw7"},{"ecosystem":"NuGet","fixed":["9.0.19"],"introduced":["9.0.0"],"last_affected":[],"package":"Microsoft.WindowsDesktop.App.Runtime.win-x86","purl":"pkg:nuget/Microsoft.WindowsDesktop.App.Runtime.win-x86","source":"GHSA-vg44-h755-9hw7"}],"prev":{"headline":"Microsoft Excel Remote Code Execution Vulnerability","id":"CVE-2026-62870"},"products":[".NET 8.0 runtime",".NET 9.0 runtime","Microsoft Visual Studio 2022 version 17.14","Microsoft Visual Studio 2026 version 18.8"],"published":"2026-08-11","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":"no","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-10-28","vendors":["Microsoft"]},"summary":"An out-of-bounds write in .NET allows local attackers to execute arbitrary code and escalate privileges.","url":"https://insights.sbomify.com/CVE-2026-62871/"}