{"answers":{"affected":"2 open source packages ship an affected version, including Microsoft.NETCore.App. It affects 1 product.","exploited":"There is no known exploitation of CVE-2018-8416 in the wild and no public exploit code.","fix":"Upgrade Microsoft.NETCore.App to 2.1.7 or later.","what":"CVE-2018-8416 is a medium-severity vulnerability in Microsoft .NET Core, published on 14 Nov 2018. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2018-8416 and fix it if it is affected.\n\nWhat it is: CVE-2018-8416 is a medium-severity vulnerability in Microsoft .NET Core, published on 14 Nov 2018. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2018-8416 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- Microsoft.NETCore.App (NuGet): affected from 2.1.0; fixed in 2.1.7\n- Microsoft.NETCore.App (NuGet): affected from 2.1.0; fixed in 2.1.7\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-2018-8416/ (Markdown: https://insights.sbomify.com/CVE-2018-8416/index.md)","id":"CVE-2018-8416","markdown":"https://insights.sbomify.com/CVE-2018-8416/index.md","name":"CVE-2018-8416","record":{"aliases":["GHSA-5633-f33j-c6f7","RHSA-2018:3676","UBUNTU-CVE-2018-8416"],"analysis":{"component_type":"library","fix_type":"patch","impacts":["data_modify"],"network_reachable":"yes","non_default_config":false,"product_category":".NET Core runtime","requires_auth":"low_privilege","summary":"Attackers can tamper with data by exploiting improper handling of specially crafted files in the .NET Core runtime.","user_interaction":"not_required","vuln_class":"other"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"microsoft","cpe":[{"product":"asp.net_core","vendor":"microsoft"}],"cvss":{"score":6.5,"severity":"medium","source":"nvd","vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N","version":"3.0"},"cwes":[],"description":"A tampering vulnerability exists when .NET Core improperly handles specially crafted files, aka \".NET Core Tampering Vulnerability.\" This affects .NET Core 2.1.","ecosystems":["NuGet","Red Hat:rhel_dotnet:2.1::el7"],"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":"Tampering vulnerability in .NET Core","id":"CVE-2018-8416","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"NuGet","product":null,"products":[],"type":"other","year":"2018"},"n_packages":8,"n_references":4,"next":{"headline":"Security feature bypass in Windows 10","id":"CVE-2018-8417"},"packages":[{"ecosystem":"NuGet","fixed":["2.1.7"],"introduced":["2.1.0"],"last_affected":[],"package":"Microsoft.NETCore.App","purl":null,"source":"GHSA-5633-f33j-c6f7"},{"ecosystem":"NuGet","fixed":["2.1.7"],"introduced":["2.1.0"],"last_affected":[],"package":"Microsoft.NETCore.App","purl":"pkg:nuget/Microsoft.NETCore.App","source":"GHSA-5633-f33j-c6f7"},{"ecosystem":"Red Hat:rhel_dotnet:2.1::el7","fixed":["0:2.1.500-5.el7"],"introduced":["0"],"last_affected":[],"package":"rh-dotnet21-dotnet","purl":"pkg:rpm/redhat/rh-dotnet21-dotnet","source":"RHSA-2018:3676"},{"ecosystem":"Red Hat:rhel_dotnet:2.1::el7","fixed":["0:2.1.500-5.el7"],"introduced":["0"],"last_affected":[],"package":"rh-dotnet21-dotnet-debuginfo","purl":"pkg:rpm/redhat/rh-dotnet21-dotnet-debuginfo","source":"RHSA-2018:3676"},{"ecosystem":"Red Hat:rhel_dotnet:2.1::el7","fixed":["0:2.1.6-5.el7"],"introduced":["0"],"last_affected":[],"package":"rh-dotnet21-dotnet-host","purl":"pkg:rpm/redhat/rh-dotnet21-dotnet-host","source":"RHSA-2018:3676"},{"ecosystem":"Red Hat:rhel_dotnet:2.1::el7","fixed":["0:2.1.6-5.el7"],"introduced":["0"],"last_affected":[],"package":"rh-dotnet21-dotnet-runtime-2.1","purl":"pkg:rpm/redhat/rh-dotnet21-dotnet-runtime-2.1","source":"RHSA-2018:3676"},{"ecosystem":"Red Hat:rhel_dotnet:2.1::el7","fixed":["0:2.1.500-5.el7"],"introduced":["0"],"last_affected":[],"package":"rh-dotnet21-dotnet-sdk-2.1","purl":"pkg:rpm/redhat/rh-dotnet21-dotnet-sdk-2.1","source":"RHSA-2018:3676"},{"ecosystem":"Red Hat:rhel_dotnet:2.1::el7","fixed":["0:2.1.500-5.el7"],"introduced":["0"],"last_affected":[],"package":"rh-dotnet21-dotnet-sdk-2.1.5xx","purl":"pkg:rpm/redhat/rh-dotnet21-dotnet-sdk-2.1.5xx","source":"RHSA-2018:3676"}],"prev":{"headline":"Code injection in PowerShell Core","id":"CVE-2018-8415"},"products":[".NET Core"],"published":"2018-11-14","related":[{"cvss_score":9.9,"headline":"ASP.NET Security Feature Bypass Vulnerability","id":"CVE-2025-55315","kev_date_added":null,"published":"2025-10-14"},{"cvss_score":9.4,"headline":"ASP.NET Core Tampering Vulnerability","id":"CVE-2026-88092","kev_date_added":null,"published":"2026-10-13"},{"cvss_score":9.1,"headline":"ASP.NET Core Elevation of Privilege Vulnerability","id":"CVE-2026-40372","kev_date_added":null,"published":"2026-04-21"},{"cvss_score":8.8,"headline":"ASP.NET Core and Visual Studio Elevation of Privilege Vulnerability","id":"CVE-2021-43877","kev_date_added":null,"published":"2021-12-15"},{"cvss_score":8.8,"headline":"Remote code execution in ASP.NET Core","id":"CVE-2020-0603","kev_date_added":null,"published":"2020-01-14"},{"cvss_score":8.8,"headline":"Elevation of privilege in ASP.NET Core","id":"CVE-2019-1302","kev_date_added":null,"published":"2019-09-11"},{"cvss_score":8.8,"headline":"ASP.NET Core allow an elevation of privilege","id":"CVE-2018-0787","kev_date_added":null,"published":"2018-03-14"}],"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":"CC BY 4.0","name":"Red Hat","prefix":"RHSA"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-05","vendors":["Microsoft"]},"summary":"Attackers can tamper with data by exploiting improper handling of specially crafted files in the .NET Core runtime.","url":"https://insights.sbomify.com/CVE-2018-8416/"}