{"answers":{"affected":"4 open source packages ship an affected version, including Microsoft.DiaSymReader.Native, dotnet and dotnet-sdk. It affects 3 products.","exploited":"There is no known exploitation of CVE-2026-69439 in the wild and no public exploit code.","fix":"Upgrade Microsoft.DiaSymReader.Native to 18.9.0-beta1.26405.2 or later.","what":"CVE-2026-69439 is a high-severity memory corruption vulnerability in Microsoft .Net, published on 8 Sep 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2026-69439 and fix it if it is affected.\n\nWhat it is: CVE-2026-69439 is a high-severity memory corruption vulnerability in Microsoft .Net, published on 8 Sep 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2026-69439 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- Microsoft.DiaSymReader.Native (NuGet): affected from 17.10.0-beta1.24272.1; fixed in 18.9.0-beta1.26405.2\n- Microsoft.DiaSymReader.Native (NuGet): affected from 17.10.0-beta1.24272.1; fixed in 18.9.0-beta1.26405.2\n- dotnet (Bitnami): affected from 8.0.0; fixed in 8.0.31, 9.0.20, 10.0.12\n- dotnet-sdk (Bitnami): affected from 8.0.0; fixed in 8.0.31, 9.0.20, 10.0.12\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-2026-69439/ (Markdown: https://insights.sbomify.com/CVE-2026-69439/index.md)","id":"CVE-2026-69439","markdown":"https://insights.sbomify.com/CVE-2026-69439/index.md","name":"CVE-2026-69439","record":{"aliases":["BELL-CVE-2026-69439","BIT-dotnet-2026-69439","BIT-dotnet-sdk-2026-69439","GHSA-527h-q9f6-p7qx","MINI-cmq9-xpcp-93mr","MINI-v9g9-cxr9-9v6j","UBUNTU-CVE-2026-69439"],"analysis":{"component_type":"developer_tool","fix_type":"patch","impacts":["privilege_escalation"],"network_reachable":"yes","non_default_config":false,"product_category":".NET and Visual Studio","requires_auth":"none","summary":"Heap-based buffer overflow in .NET and Visual Studio allows network attackers to elevate 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":8.8,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/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-122","name":"Heap-based Buffer Overflow"}],"description":"Heap-based buffer overflow in .NET and Visual Studio allows an unauthorized attacker to elevate privileges over a network.","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 and Visual Studio Elevation of Privilege Vulnerability","id":"CVE-2026-69439","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":4,"n_references":1,"next":{"headline":"Windows MIDI Service Module Elevation of Privileges Vulnerability","id":"CVE-2026-69440"},"packages":[{"ecosystem":"Bitnami","fixed":["8.0.31","9.0.20","10.0.12"],"introduced":["8.0.0","9.0.0","10.0.0"],"last_affected":[],"package":"dotnet","purl":"pkg:bitnami/dotnet","source":"BIT-dotnet-2026-69439"},{"ecosystem":"Bitnami","fixed":["8.0.31","9.0.20","10.0.12"],"introduced":["8.0.0","9.0.0","10.0.0"],"last_affected":[],"package":"dotnet-sdk","purl":"pkg:bitnami/dotnet-sdk","source":"BIT-dotnet-sdk-2026-69439"},{"ecosystem":"NuGet","fixed":["18.9.0-beta1.26405.2"],"introduced":["17.10.0-beta1.24272.1"],"last_affected":[],"package":"Microsoft.DiaSymReader.Native","purl":null,"source":"GHSA-527h-q9f6-p7qx"},{"ecosystem":"NuGet","fixed":["18.9.0-beta1.26405.2"],"introduced":["17.10.0-beta1.24272.1"],"last_affected":[],"package":"Microsoft.DiaSymReader.Native","purl":"pkg:nuget/Microsoft.DiaSymReader.Native","source":"GHSA-527h-q9f6-p7qx"}],"prev":{"headline":"Microsoft JScript Remote Code Execution Vulnerability","id":"CVE-2026-69438"},"products":[".NET 10.0",".NET 11.0",".NET 8.0",".NET 9.0","Microsoft Visual Studio 2022 version 17.14","Microsoft Visual Studio 2026 version 18.9"],"published":"2026-09-08","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 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":"2026-10-14","vendors":["Microsoft"]},"summary":"Heap-based buffer overflow in .NET and Visual Studio allows network attackers to elevate privileges.","url":"https://insights.sbomify.com/CVE-2026-69439/"}