{"id":"CVE-2020-16009","published":"2020-11-03T03:15:15Z","modified":"2026-06-17T02:57:37Z","title":"Google Chromium V8 Type Confusion Vulnerability","vendor":"Google","product":"Chromium V8","tier":"core","eol":null,"description":{"text":"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.","provenance":"source","from":"NVD"},"summary":{"text":"The flaw is an inappropriate implementation in the V8 JavaScript engine of Google Chromium, which is the component that makes up Google Chrome. It can lead to heap corruption and is affected in Chrome builds before 86.0.4240.183. A remote attacker can exploit it by getting a victim to load a crafted HTML page, which requires user interaction (the victim visiting the page) but no authentication or prior network access.","provenance":"ai","model":"claude-haiku-5-5","generatedAt":"2026-10-31T04:54:18Z"},"cvss":{"score":8.8,"severity":"HIGH","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","provenance":"source","from":"NVD"},"epss":{"score":0.48293,"percentile":0.98863,"date":"2026-10-30","provenance":"source"},"kev":{"dateAdded":"2021-11-03","dueDate":"2022-05-03","ransomware":false,"requiredAction":"Apply updates per vendor instructions.","notes":"https://nvd.nist.gov/vuln/detail/CVE-2020-16009","provenance":"source"},"vulncheckKev":{"dateAdded":"2020-10-29","exploitedFirstSeen":"2020-10-29","ransomware":false,"evidence":[{"url":"https://docs.google.com/spreadsheets/d/1lkNJ0uQwbeC1ZTRrxdtuPLCIl7mlUreoKfSIgajnSyY/edit","date":"2020-10-29"},{"url":"https://googleprojectzero.github.io/0days-in-the-wild//0day-RCAs/2020/CVE-2020-16009.html","date":"2021-02-04"},{"url":"https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json","date":"2021-11-03"}],"evidenceTotal":3,"provenance":"source"},"exploited":true,"otx":{"pulseCount":50,"pulses":[{"name":"Actively_Exploited_Kev | Oct 29, 2026","url":"https://otx.alienvault.com/pulse/6ae20c1db17e7057ae7d9ad1","created":"2026-10-28"},{"name":"Actively_Exploited_Kev | Oct 28, 2026","url":"https://otx.alienvault.com/pulse/6ae0ba7e0e2a97ff7b218819","created":"2026-10-27"},{"name":"Actively_Exploited_Kev | Oct 27, 2026","url":"https://otx.alienvault.com/pulse/6adf68b85c3e852f3c111d18","created":"2026-10-26"},{"name":"Actively_Exploited_Kev | Oct 24, 2026","url":"https://otx.alienvault.com/pulse/6adb740e397c3ad4799aa4cd","created":"2026-10-23"},{"name":"Actively_Exploited_Kev | Oct 23, 2026","url":"https://otx.alienvault.com/pulse/6ada236fcfba2dfa730ea482","created":"2026-10-22"},{"name":"Actively_Exploited_Kev | Oct 22, 2026","url":"https://otx.alienvault.com/pulse/6ad8d33a077cbb5cab524d80","created":"2026-10-21"},{"name":"Actively_Exploited_Kev | Oct 21, 2026","url":"https://otx.alienvault.com/pulse/6ad78130c4d1ac2be83a8b6d","created":"2026-10-20"},{"name":"Actively_Exploited_Kev | Oct 20, 2026","url":"https://otx.alienvault.com/pulse/6ad62f63c24a405a3423cc13","created":"2026-10-19"},{"name":"Actively_Exploited_Kev | Oct 19, 2026","url":"https://otx.alienvault.com/pulse/6ad4dda174e5797d0bd238b7","created":"2026-10-18"},{"name":"Actively_Exploited_Kev | Oct 18, 2026","url":"https://otx.alienvault.com/pulse/6ad38c22e1848f8189d1c121","created":"2026-10-17"}],"provenance":"machine"},"cwes":[{"id":"CWE-787","name":"Out-of-bounds Write"},{"id":"CWE-843","name":"Access of Resource Using Incompatible Type"}],"references":[{"url":"http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00016.html","tags":["Broken Link","Mailing List","Third Party Advisory"]},{"url":"http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00017.html","tags":["Broken Link","Mailing List","Third Party Advisory"]},{"url":"http://packetstormsecurity.com/files/159974/Chrome-V8-Turbofan-Type-Confusion.html","tags":["Exploit","Third Party Advisory","VDB Entry"]},{"url":"https://chromereleases.googleblog.com/2020/11/stable-channel-update-for-desktop.html","tags":["Release Notes","Vendor Advisory"]},{"url":"https://crbug.com/1143772","tags":["Exploit","Issue Tracking"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/S4XYJ7B6OXHZNYSA5J3DBUOFEC6WCAGW/","tags":["Release Notes"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SC3U3H6AISVZB5PLZLLNF4HMQ4UFFL7M/","tags":["Release Notes"]},{"url":"https://security.gentoo.org/glsa/202011-12","tags":["Third Party Advisory"]},{"url":"https://www.debian.org/security/2021/dsa-4824","tags":["Mailing List","Third Party Advisory"]},{"url":"http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00016.html","tags":["Broken Link","Mailing List","Third Party Advisory"]},{"url":"http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00017.html","tags":["Broken Link","Mailing List","Third Party Advisory"]},{"url":"http://packetstormsecurity.com/files/159974/Chrome-V8-Turbofan-Type-Confusion.html","tags":["Exploit","Third Party Advisory","VDB Entry"]},{"url":"https://chromereleases.googleblog.com/2020/11/stable-channel-update-for-desktop.html","tags":["Release Notes","Vendor Advisory"]},{"url":"https://crbug.com/1143772","tags":["Exploit","Issue Tracking"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/S4XYJ7B6OXHZNYSA5J3DBUOFEC6WCAGW/","tags":["Release Notes"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SC3U3H6AISVZB5PLZLLNF4HMQ4UFFL7M/","tags":["Release Notes"]},{"url":"https://security.gentoo.org/glsa/202011-12","tags":["Third Party Advisory"]},{"url":"https://www.debian.org/security/2021/dsa-4824","tags":["Mailing List","Third Party Advisory"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-16009","tags":["US Government Resource"]}],"techniques":[{"id":"T1189","name":"Drive-by Compromise","tactics":["initial-access"],"provenance":"ai","basis":"ai-mapping","bases":["ai-mapping"],"basisDetail":"claude-haiku-5-5: Malicious webpage delivers exploit to browser","mappingType":"exploitation_technique","evidence":[{"from":"description","quote":"via a crafted HTML page","start":140,"end":163}],"model":"claude-haiku-5-5","confidence":"medium","confidenceNote":"AI-mapped from the description (quote-validated, not expert-reviewed)"},{"id":"T1203","name":"Exploitation for Client Execution","tactics":["execution"],"provenance":"ai","basis":"ai-mapping","bases":["ai-mapping"],"basisDetail":"claude-haiku-5-5: Browser exploit yields client-side code execution","mappingType":"primary_impact","evidence":[{"from":"description","quote":"allowed a remote attacker to potentially exploit heap corruption","start":75,"end":139}],"model":"claude-haiku-5-5","confidence":"medium","confidenceNote":"AI-mapped from the description (quote-validated, not expert-reviewed)"}],"reports":[],"affected":[{"ecosystem":"NuGet","package":"CefSharp.Common","vulnerableRanges":["<86.0.241"],"patched":["86.0.241"],"from":["GHSA-m7mf-48hp-5qmr"],"provenance":"source"},{"ecosystem":"NuGet","package":"CefSharp.Wpf","vulnerableRanges":["<86.0.241"],"patched":["86.0.241"],"from":["GHSA-m7mf-48hp-5qmr"],"provenance":"source"},{"ecosystem":"NuGet","package":"CefSharp.WinForms","vulnerableRanges":["<86.0.241"],"patched":["86.0.241"],"from":["GHSA-m7mf-48hp-5qmr"],"provenance":"source"},{"ecosystem":"NuGet","package":"CefSharp.Wpf.HwndHost","vulnerableRanges":["<86.0.241"],"patched":["86.0.241"],"from":["GHSA-m7mf-48hp-5qmr"],"provenance":"source"}],"advisories":[{"id":"GHSA-m7mf-48hp-5qmr","url":"https://github.com/advisories/GHSA-m7mf-48hp-5qmr","severity":"HIGH","ecosystem":"NuGet","package":"CefSharp.Common","vulnerableRanges":["<86.0.241"],"patched":["86.0.241"],"provenance":"source","from":"GHSA"},{"id":"GHSA-m7mf-48hp-5qmr","url":"https://github.com/advisories/GHSA-m7mf-48hp-5qmr","severity":"HIGH","ecosystem":"NuGet","package":"CefSharp.Wpf","vulnerableRanges":["<86.0.241"],"patched":["86.0.241"],"provenance":"source","from":"GHSA"},{"id":"GHSA-m7mf-48hp-5qmr","url":"https://github.com/advisories/GHSA-m7mf-48hp-5qmr","severity":"HIGH","ecosystem":"NuGet","package":"CefSharp.WinForms","vulnerableRanges":["<86.0.241"],"patched":["86.0.241"],"provenance":"source","from":"GHSA"},{"id":"GHSA-m7mf-48hp-5qmr","url":"https://github.com/advisories/GHSA-m7mf-48hp-5qmr","severity":"HIGH","ecosystem":"NuGet","package":"CefSharp.Wpf.HwndHost","vulnerableRanges":["<86.0.241"],"patched":["86.0.241"],"provenance":"source","from":"GHSA"}],"euvd":{"id":"EUVD-2020-1500","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2020-1500","exploited":true,"exploitedSince":"2021-11-03","provenance":"source"},"exploits":[],"exploitSources":null,"exploitRefs":["http://packetstormsecurity.com/files/159974/Chrome-V8-Turbofan-Type-Confusion.html","https://crbug.com/1143772"],"flow":[{"stage":"exploitation","techniques":["T1189"],"provenance":"ai"},{"stage":"primary","techniques":["T1203"],"provenance":"ai"}],"timeline":[{"date":"2020-10-29","kind":"exploited-reported","label":"Exploitation 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percentile","points":19.77,"detail":"percentile 0.9886"},{"name":"Named in threat reports","points":0.0,"detail":"0 reports"},{"name":"Public exploit code","points":5.0,"detail":"2 NVD references tagged Exploit"},{"name":"Mentioned in OTX pulses","points":3.0,"detail":"50 pulses"},{"name":"CVSS severity","points":6.16,"detail":"base score 8.8"},{"name":"End-of-life product","points":0.0,"detail":"supported or unknown"}]},"lineage":{"familyId":"fam-class-google-chrome-cwe-787"}}