{"answers":{"affected":"4 open source packages ship an affected version, including Microsoft.Native.Quic.MsQuic.Schannel. It affects 10 products.","exploited":"There is no known exploitation of CVE-2026-85790 in the wild and no public exploit code.","fix":"Upgrade Microsoft.Native.Quic.MsQuic.Schannel to a fixed version for your release line: 2.5.12 or 2.6.3.","what":"CVE-2026-85790 is a medium-severity use after free vulnerability in Microsoft Visual Studio 2022, 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-2026-85790 and fix it if it is affected.\n\nWhat it is: CVE-2026-85790 is a medium-severity use after free vulnerability in Microsoft Visual Studio 2022, 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-2026-85790 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- Microsoft.Native.Quic.MsQuic.Schannel (NuGet): affected from 1.9.0; fixed in 2.5.12\n- Microsoft.Native.Quic.MsQuic.Schannel (NuGet): affected from 1.9.0; fixed in 2.5.12\n- Microsoft.Native.Quic.MsQuic.Schannel (NuGet): affected from 2.6.0; fixed in 2.6.3\n- Microsoft.Native.Quic.MsQuic.Schannel (NuGet): affected from 2.6.0; fixed in 2.6.3\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-2026-85790/ (Markdown: https://insights.sbomify.com/CVE-2026-85790/index.md)","id":"CVE-2026-85790","markdown":"https://insights.sbomify.com/CVE-2026-85790/index.md","name":"CVE-2026-85790","record":{"aliases":["GHSA-2mxg-prvg-9jfg","UBUNTU-CVE-2026-85790"],"analysis":{"component_type":"operating_system","fix_type":"patch","impacts":["data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"Microsoft QUIC","requires_auth":"none","summary":"An unauthorized attacker can disclose information over a network via a use-after-free flaw in Microsoft QUIC.","user_interaction":"not_required","vuln_class":"use_after_free"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"microsoft","cpe":[{"product":"native.quic.msquic.schannel","vendor":"microsoft"},{"product":"visual_studio_2022","vendor":"microsoft"},{"product":"visual_studio_2026","vendor":"microsoft"},{"product":"windows_11_23h2","vendor":"microsoft"},{"product":"windows_11_24h2","vendor":"microsoft"},{"product":"windows_11_25h2","vendor":"microsoft"},{"product":"windows_11_26h1","vendor":"microsoft"},{"product":"windows_11_26h2","vendor":"microsoft"},{"product":"windows_server_2022","vendor":"microsoft"},{"product":"windows_server_2025","vendor":"microsoft"}],"cvss":{"score":5.9,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C","version":"3.1"},"cwes":[{"id":"CWE-416","name":"Use After Free"}],"description":"Use after free in Microsoft QUIC allows an unauthorized attacker to disclose information 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":"Microsoft QUIC Information Disclosure Vulnerability","id":"CVE-2026-85790","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"NuGet","product":"microsoft:visual_studio_2022","products":["microsoft:visual_studio_2022","microsoft:windows_11_23h2","microsoft:windows_11_24h2","microsoft:windows_11_25h2","microsoft:windows_11_26h1","microsoft:windows_11_26h2","microsoft:windows_server_2022","microsoft:windows_server_2025"],"type":"use_after_free","year":"2026"},"n_packages":4,"n_references":1,"next":{"headline":"Windows Encrypting File System (EFS) Elevation of Privilege Vulnerability","id":"CVE-2026-85791"},"packages":[{"ecosystem":"NuGet","fixed":["2.5.12"],"introduced":["1.9.0"],"last_affected":[],"package":"Microsoft.Native.Quic.MsQuic.Schannel","purl":null,"source":"GHSA-2mxg-prvg-9jfg"},{"ecosystem":"NuGet","fixed":["2.5.12"],"introduced":["1.9.0"],"last_affected":[],"package":"Microsoft.Native.Quic.MsQuic.Schannel","purl":"pkg:nuget/Microsoft.Native.Quic.MsQuic.Schannel","source":"GHSA-2mxg-prvg-9jfg"},{"ecosystem":"NuGet","fixed":["2.6.3"],"introduced":["2.6.0"],"last_affected":[],"package":"Microsoft.Native.Quic.MsQuic.Schannel","purl":null,"source":"GHSA-2mxg-prvg-9jfg"},{"ecosystem":"NuGet","fixed":["2.6.3"],"introduced":["2.6.0"],"last_affected":[],"package":"Microsoft.Native.Quic.MsQuic.Schannel","purl":"pkg:nuget/Microsoft.Native.Quic.MsQuic.Schannel","source":"GHSA-2mxg-prvg-9jfg"}],"prev":{"headline":"This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.","id":"CVE-2026-85789"},"products":["Microsoft Visual Studio 2022 version 17.14","Microsoft Visual Studio 2026 version 18.10","Microsoft.Native.Quic.MsQuic.Schannel","Windows 11 Version 23H2","Windows 11 Version 24H2","Windows 11 Version 25H2","Windows 11 Version 26H2","Windows 11 version 23H2","Windows 11 version 26H1","Windows Server 2022","Windows Server 2025","Windows Server 2025 (Server Core installation)"],"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":"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":"partial"},"state":"PUBLISHED","updated":"2026-10-29","vendors":["Microsoft"]},"summary":"An unauthorized attacker can disclose information over a network via a use-after-free flaw in Microsoft QUIC.","url":"https://insights.sbomify.com/CVE-2026-85790/"}