{"id":"CVE-2020-6418","published":"2020-02-27T23:15:12Z","modified":"2026-06-17T03:23:18Z","title":"Google Chromium V8 Type Confusion Vulnerability","vendor":"Google","product":"Chromium V8","tier":"core","eol":null,"description":{"text":"Type confusion in V8 in Google Chrome prior to 80.0.3987.122 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.","provenance":"source","from":"NVD"},"summary":{"text":"The flaw is a type confusion vulnerability in the V8 JavaScript engine of Google Chrome (Chromium V8). An attacker can potentially exploit heap corruption by luring a victim to a crafted HTML page, requiring no authentication, only remote access and user interaction in the form of visiting that page.","provenance":"ai","model":"claude-haiku-5-5","generatedAt":"2026-10-31T04:54:09Z"},"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":0.78808,"percentile":0.9959,"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-2020-6418","provenance":"source"},"vulncheckKev":{"dateAdded":"2020-02-18","exploitedFirstSeen":"2020-02-18","ransomware":false,"evidence":[{"url":"https://docs.google.com/spreadsheets/d/1lkNJ0uQwbeC1ZTRrxdtuPLCIl7mlUreoKfSIgajnSyY/edit","date":"2020-02-18"},{"url":"https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json","date":"2021-11-03"},{"url":"https://www.trendmicro.com/en_us/research/24/l/earth-minotaur.html","date":"2024-12-05"}],"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-843","name":"Access of Resource Using Incompatible Type"}],"references":[{"url":"http://packetstormsecurity.com/files/156632/Google-Chrome-80-JSCreate-Side-Effect-Type-Confusion.html","tags":["Exploit","Third Party Advisory","VDB Entry"]},{"url":"https://access.redhat.com/errata/RHSA-2020:0738","tags":["Third Party Advisory"]},{"url":"https://chromereleases.googleblog.com/2020/02/stable-channel-update-for-desktop_24.html","tags":["Release Notes","Vendor Advisory"]},{"url":"https://crbug.com/1053604","tags":["Exploit","Issue Tracking","Patch","Vendor Advisory"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6IOHSO6BUKC6I66J5PZOMAGFVJ66ZS57/","tags":["Release Notes"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/X3B5RWJQD5LA45MYLLR55KZJOJ5NVZGP/","tags":["Release Notes"]},{"url":"https://security.gentoo.org/glsa/202003-08","tags":["Third Party Advisory"]},{"url":"https://www.debian.org/security/2020/dsa-4638","tags":["Mailing List","Third Party Advisory"]},{"url":"http://packetstormsecurity.com/files/156632/Google-Chrome-80-JSCreate-Side-Effect-Type-Confusion.html","tags":["Exploit","Third Party Advisory","VDB Entry"]},{"url":"https://access.redhat.com/errata/RHSA-2020:0738","tags":["Third Party Advisory"]},{"url":"https://chromereleases.googleblog.com/2020/02/stable-channel-update-for-desktop_24.html","tags":["Release Notes","Vendor Advisory"]},{"url":"https://crbug.com/1053604","tags":["Exploit","Issue Tracking","Patch","Vendor Advisory"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6IOHSO6BUKC6I66J5PZOMAGFVJ66ZS57/","tags":["Release Notes"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/X3B5RWJQD5LA45MYLLR55KZJOJ5NVZGP/","tags":["Release Notes"]},{"url":"https://security.gentoo.org/glsa/202003-08","tags":["Third Party Advisory"]},{"url":"https://www.debian.org/security/2020/dsa-4638","tags":["Mailing List","Third Party Advisory"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-6418","tags":["US Government Resource"]}],"techniques":[{"id":"T1189","name":"Drive-by Compromise","tactics":["initial-access"],"provenance":"source","basis":"ctid-cve","bases":["ctid-cve","ai-mapping"],"basisDetail":"CTID attack_to_cve (Phase 1); claude-haiku-5-5: Drive-by via crafted HTML page","mappingType":"uncategorized","evidence":[{"from":"description","quote":"allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page","start":61,"end":149}],"confidence":"medium","confidenceNote":"AI-mapped from the description (quote-validated, not expert-reviewed)"},{"id":"T1203","name":"Exploitation for Client Execution","tactics":["execution"],"provenance":"source","basis":"ctid-cve","bases":["ctid-cve","ai-mapping"],"basisDetail":"CTID attack_to_cve (Phase 1); claude-haiku-5-5: Exploits V8 engine in browser","mappingType":"uncategorized","evidence":[{"from":"description","quote":"Type confusion in V8 in Google Chrome","start":0,"end":37}],"confidence":"medium","confidenceNote":"AI-mapped from the description (quote-validated, not expert-reviewed)"}],"reports":[],"affected":[],"advisories":[],"euvd":{"id":"EUVD-2020-27568","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2020-27568","exploited":true,"exploitedSince":"2021-11-03","provenance":"source"},"exploits":[{"id":48186,"url":"https://www.exploit-db.com/exploits/48186","title":"Google Chrome 80 - JSCreate Side-effect Type Confusion (Metasploit)","type":"remote","platform":"multiple","date":"2020-03-09","verified":true,"provenance":"source"}],"exploitSources":{"exploitdb":{"count":1,"earliest":"2020-03-09"},"pocGithub":{"count":4,"skipped":0,"earliest":"2020-03-03","earliestUrl":"https://github.com/ASkyeye/CVE-2020-6418","repos":[{"name":"Goyotan/CVE-2020-6418-PoC","url":"https://github.com/Goyotan/CVE-2020-6418-PoC","stars":3,"created":"2020-06-13"},{"name":"ulexec/ChromeSHELFLoader","url":"https://github.com/ulexec/ChromeSHELFLoader","stars":3,"created":"2022-02-19"},{"name":"SivaPriyaRanganatha/CVE-2020-6418","url":"https://github.com/SivaPriyaRanganatha/CVE-2020-6418","stars":1,"created":"2022-03-21"},{"name":"ASkyeye/CVE-2020-6418","url":"https://github.com/ASkyeye/CVE-2020-6418","stars":0,"created":"2020-03-03"}]},"metasploit":[{"name":"Google Chrome 80 JSCreate side-effect type confusion exploit","module":"exploit/multi/browser/chrome_jscreate_sideeffect","type":"exploit","disclosureDate":"2020-02-19","url":"https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/multi/browser/chrome_jscreate_sideeffect.rb"}],"first":{"date":"2020-02-19","source":"Metasploit","url":"https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/multi/browser/chrome_jscreate_sideeffect.rb"},"provenance":"source"},"exploitRefs":["http://packetstormsecurity.com/files/156632/Google-Chrome-80-JSCreate-Side-Effect-Type-Confusion.html","https://crbug.com/1053604"],"flow":[{"stage":"related","techniques":["T1189","T1203"],"provenance":"source"}],"timeline":[{"date":"2020-02-18","kind":"exploited-reported","label":"Exploitation first reported (VulnCheck KEV evidence)","url":"https://docs.google.com/spreadsheets/d/1lkNJ0uQwbeC1ZTRrxdtuPLCIl7mlUreoKfSIgajnSyY/edit","provenance":"source"},{"date":"2020-02-19","kind":"exploit-public","label":"First public exploit: Metasploit; later: PoC-in-GitHub 2020-03-03, Exploit-DB 2020-03-09","url":"https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/multi/browser/chrome_jscreate_sideeffect.rb","provenance":"source"},{"date":"2020-02-27","kind":"published","label":"Published (NVD)","url":"https://nvd.nist.gov/vuln/detail/CVE-2020-6418","provenance":"source"},{"date":"2021-11-03","kind":"kev","label":"Added to CISA KEV","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","provenance":"source"},{"date":"2021-11-03","kind":"euvd-exploited","label":"ENISA EUVD: exploited","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2020-27568","provenance":"source"}],"speed":{"daysToPublicExploit":null,"firstExploitFrom":"Metasploit","daysToKev":615},"priority":{"score":69.1,"factors":[{"name":"In a KEV catalog","points":35.0,"detail":"listed in CISA KEV and VulnCheck KEV"},{"name":"Recent KEV listing","points":0.0,"detail":"added 2447 days ago"},{"name":"Known ransomware use","points":0.0,"detail":"not known"},{"name":"EPSS percentile","points":19.92,"detail":"percentile 0.9959"},{"name":"Named in threat reports","points":0.0,"detail":"0 reports"},{"name":"Public exploit code","points":5.0,"detail":"2 NVD references tagged Exploit; 1 Exploit-DB entry; 4 PoC-in-GitHub repos; 1 Metasploit module"},{"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-843"}}