{"answers":{"affected":"8 open source packages ship an affected version, including CefSharp.Common, CefSharp.WinForms and CefSharp.Wpf. It affects 8 products.","exploited":"Yes. Attackers have exploited CVE-2020-16009 in the wild since at least 3 Nov 2021.","fix":"Upgrade CefSharp.Common to 86.0.241 or later. US federal agencies must fix it by 3 May 2022.","what":"CVE-2020-16009 is a high-severity memory corruption vulnerability in Debian Debian Linux, published on 3 Nov 2020. 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-2020-16009 and fix it if it is affected.\n\nWhat it is: CVE-2020-16009 is a high-severity memory corruption vulnerability in Debian Debian Linux, published on 3 Nov 2020. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.\nExploitation: Yes. Attackers have exploited CVE-2020-16009 in the wild since at least 3 Nov 2021.\n\nAffected packages and fixed versions:\n- CefSharp.Common (NuGet): affected all versions; fixed in 86.0.241\n- CefSharp.Common (NuGet): affected all versions; fixed in 86.0.241\n- CefSharp.WinForms (NuGet): affected all versions; fixed in 86.0.241\n- CefSharp.WinForms (NuGet): affected all versions; fixed in 86.0.241\n- CefSharp.Wpf (NuGet): affected all versions; fixed in 86.0.241\n- CefSharp.Wpf (NuGet): affected all versions; fixed in 86.0.241\n- CefSharp.Wpf.HwndHost (NuGet): affected all versions; fixed in 86.0.241\n- CefSharp.Wpf.HwndHost (NuGet): affected all versions; fixed in 86.0.241\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-2020-16009/ (Markdown: https://insights.sbomify.com/CVE-2020-16009/index.md)","id":"CVE-2020-16009","markdown":"https://insights.sbomify.com/CVE-2020-16009/index.md","name":"CVE-2020-16009","record":{"aliases":["DEBIAN-CVE-2020-16009","GHSA-m7mf-48hp-5qmr","UBUNTU-CVE-2020-16009"],"analysis":{"component_type":"browser","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"Google Chrome","requires_auth":"none","summary":"A remote attacker can exploit heap corruption in the V8 engine via a crafted HTML page, potentially leading to code execution.","user_interaction":"required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Chrome","cpe":[{"product":"cefsharp","vendor":"cefsharp"},{"product":"debian_linux","vendor":"debian"},{"product":"fedora","vendor":"fedoraproject"},{"product":"chrome","vendor":"google"},{"product":"edge","vendor":"microsoft"},{"product":"edge_chromium","vendor":"microsoft"},{"product":"backports_sle","vendor":"opensuse"},{"product":"leap","vendor":"opensuse"}],"cvss":{"score":8.8,"severity":"high","source":"cisa-adp","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-843","name":"Access of Resource Using Incompatible Type"},{"id":"CWE-787","name":"Out-of-bounds Write"}],"description":"Inappropriate implementation in V8 in Google Chrome prior to 86.0.4240.183 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.","ecosystems":["NuGet"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"exploited"},"has_fix":true,"headline":"Google Chromium V8 Type Confusion","id":"CVE-2020-16009","indexable":true,"kev":{"dateAdded":"2021-11-03","dueDate":"2022-05-03","knownRansomwareCampaignUse":"Unknown","product":"Chromium V8","requiredAction":"Apply updates per vendor instructions.","vendorProject":"Google","vulnerabilityName":"Google Chromium V8 Type Confusion Vulnerability"},"kind":"cve","links":{"ecosystem":"NuGet","product":"debian:debian_linux","products":["debian:debian_linux","fedoraproject:fedora","google:chrome","microsoft:edge","microsoft:edge_chromium","opensuse:backports_sle","opensuse:leap"],"type":"memory_corruption","year":"2020"},"n_packages":8,"n_references":9,"next":{"headline":"Google Chrome for Android UI Heap Buffer Overflow","id":"CVE-2020-16010"},"packages":[{"ecosystem":"NuGet","fixed":["86.0.241"],"introduced":["0"],"last_affected":[],"package":"CefSharp.Common","purl":null,"source":"GHSA-m7mf-48hp-5qmr"},{"ecosystem":"NuGet","fixed":["86.0.241"],"introduced":["0"],"last_affected":[],"package":"CefSharp.Common","purl":"pkg:nuget/CefSharp.Common","source":"GHSA-m7mf-48hp-5qmr"},{"ecosystem":"NuGet","fixed":["86.0.241"],"introduced":["0"],"last_affected":[],"package":"CefSharp.WinForms","purl":null,"source":"GHSA-m7mf-48hp-5qmr"},{"ecosystem":"NuGet","fixed":["86.0.241"],"introduced":["0"],"last_affected":[],"package":"CefSharp.WinForms","purl":"pkg:nuget/CefSharp.WinForms","source":"GHSA-m7mf-48hp-5qmr"},{"ecosystem":"NuGet","fixed":["86.0.241"],"introduced":["0"],"last_affected":[],"package":"CefSharp.Wpf","purl":null,"source":"GHSA-m7mf-48hp-5qmr"},{"ecosystem":"NuGet","fixed":["86.0.241"],"introduced":["0"],"last_affected":[],"package":"CefSharp.Wpf","purl":"pkg:nuget/CefSharp.Wpf","source":"GHSA-m7mf-48hp-5qmr"},{"ecosystem":"NuGet","fixed":["86.0.241"],"introduced":["0"],"last_affected":[],"package":"CefSharp.Wpf.HwndHost","purl":null,"source":"GHSA-m7mf-48hp-5qmr"},{"ecosystem":"NuGet","fixed":["86.0.241"],"introduced":["0"],"last_affected":[],"package":"CefSharp.Wpf.HwndHost","purl":"pkg:nuget/CefSharp.Wpf.HwndHost","source":"GHSA-m7mf-48hp-5qmr"}],"prev":{"headline":"Memory corruption in Chrome","id":"CVE-2020-16008"},"products":["Chrome"],"published":"2020-11-03","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":"open","licence":"CC0 1.0","name":"CISA KEV"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"active","technical_impact":"total"},"state":"PUBLISHED","updated":"2025-10-21","vendors":["Google"]},"summary":"A remote attacker can exploit heap corruption in the V8 engine via a crafted HTML page, potentially leading to code execution.","url":"https://insights.sbomify.com/CVE-2020-16009/"}