{"id":"CVE-2022-4262","published":"2022-12-02T21:15:12Z","modified":"2026-06-17T05:20:25Z","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 108.0.5359.94 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)","provenance":"source","from":"NVD"},"summary":{"text":"A type confusion flaw in the V8 JavaScript engine of Google Chrome, prior to version 108.0.5359.94, is the component affected here. A remote attacker who lures a user to a crafted HTML page could potentially exploit the resulting heap corruption, provided the victim interacts with the page.","provenance":"ai","model":"claude-haiku-5-5","generatedAt":"2026-10-31T04:54:24Z"},"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":0.2351,"percentile":0.97796,"date":"2026-10-30","provenance":"source"},"kev":{"dateAdded":"2022-12-05","dueDate":"2022-12-26","ransomware":false,"requiredAction":"Apply updates per vendor instructions.","notes":"https://chromereleases.googleblog.com/2022/12/stable-channel-update-for-desktop.html;  https://nvd.nist.gov/vuln/detail/CVE-2022-4262","provenance":"source"},"vulncheckKev":{"dateAdded":"2022-11-29","exploitedFirstSeen":"2022-11-29","ransomware":false,"evidence":[{"url":"https://docs.google.com/spreadsheets/d/1lkNJ0uQwbeC1ZTRrxdtuPLCIl7mlUreoKfSIgajnSyY/edit","date":"2022-11-29"},{"url":"https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json","date":"2022-12-05"},{"url":"https://raw.githubusercontent.com/blackorbird/APT_REPORT/master/summary/2023/360_APT_Annual_Research_Report_2022.pdf","date":"2023-01-17"},{"url":"https://blog.google/threat-analysis-group/spyware-vendors-use-0-days-and-n-days-against-popular-platforms/","date":"2023-03-29"},{"url":"https://googleprojectzero.blogspot.com/2023/09/analyzing-modern-in-wild-android-exploit.html","date":"2023-09-21"},{"url":"https://ti.qianxin.com/uploads/2024/02/02/dcc93e586f9028c68e7ab34c3326ff31.pdf","date":"2024-02-02"},{"url":"https://storage.googleapis.com/gweb-uniblog-publish-prod/documents/Buying_Spying_-_Insights_into_Commercial_Surveillance_Vendors.pdf","date":"2024-02-06"}],"evidenceTotal":7,"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"},{"id":"CWE-122","name":"Heap-based Buffer Overflow"}],"references":[{"url":"https://chromereleases.googleblog.com/2022/12/stable-channel-update-for-desktop.html","tags":["Patch","Release Notes","Vendor Advisory"]},{"url":"https://crbug.com/1394403","tags":["Permissions Required","Vendor Advisory"]},{"url":"https://chromereleases.googleblog.com/2022/12/stable-channel-update-for-desktop.html","tags":["Patch","Release Notes","Vendor Advisory"]},{"url":"https://crbug.com/1394403","tags":["Permissions Required","Vendor Advisory"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-4262","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: drive-by via crafted HTML page","mappingType":"exploitation_technique","evidence":[{"from":"description","quote":"allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page","start":61,"end":149}],"model":"claude-haiku-5-5","confidence":"medium","confidenceNote":"AI-mapped from the description (quote-validated, not expert-reviewed)"},{"id":"T1059","name":"Command and Scripting Interpreter","tactics":["execution"],"provenance":"ai","basis":"ai-mapping","bases":["ai-mapping"],"basisDetail":"claude-haiku-5-5: heap corruption yields arbitrary code execution","mappingType":"primary_impact","evidence":[{"from":"description","quote":"exploit heap corruption via a crafted HTML page","start":102,"end":149}],"model":"claude-haiku-5-5","confidence":"medium","confidenceNote":"AI-mapped from the description (quote-validated, not expert-reviewed)"}],"reports":[],"affected":[],"advisories":[],"euvd":{"id":"EUVD-2022-51618","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2022-51618","exploited":true,"exploitedSince":"2022-12-05","provenance":"source"},"exploits":[],"exploitSources":{"pocGithub":{"count":2,"skipped":1,"earliest":"2023-07-13","earliestUrl":"https://github.com/bjrjk/CVE-2022-4262","repos":[{"name":"bjrjk/CVE-2022-4262","url":"https://github.com/bjrjk/CVE-2022-4262","stars":105,"created":"2023-07-13"},{"name":"mistymntncop/CVE-2022-4262","url":"https://github.com/mistymntncop/CVE-2022-4262","stars":58,"created":"2024-01-24"}]},"first":{"date":"2023-07-13","source":"PoC-in-GitHub","url":"https://github.com/bjrjk/CVE-2022-4262"},"provenance":"source"},"exploitRefs":[],"flow":[{"stage":"exploitation","techniques":["T1189"],"provenance":"ai"},{"stage":"primary","techniques":["T1059"],"provenance":"ai"}],"timeline":[{"date":"2022-11-29","kind":"exploited-reported","label":"Exploitation first reported (VulnCheck KEV evidence)","url":"https://docs.google.com/spreadsheets/d/1lkNJ0uQwbeC1ZTRrxdtuPLCIl7mlUreoKfSIgajnSyY/edit","provenance":"source"},{"date":"2022-12-02","kind":"published","label":"Published (NVD)","url":"https://nvd.nist.gov/vuln/detail/CVE-2022-4262","provenance":"source"},{"date":"2022-12-05","kind":"kev","label":"Added to CISA KEV","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","provenance":"source"},{"date":"2022-12-05","kind":"euvd-exploited","label":"ENISA EUVD: exploited","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2022-51618","provenance":"source"},{"date":"2023-07-13","kind":"exploit-public","label":"First public exploit: PoC-in-GitHub","url":"https://github.com/bjrjk/CVE-2022-4262","provenance":"source"}],"speed":{"daysToPublicExploit":223,"firstExploitFrom":"PoC-in-GitHub","daysToKev":3},"priority":{"score":68.7,"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 1432 days ago"},{"name":"Known ransomware use","points":0.0,"detail":"not known"},{"name":"EPSS percentile","points":19.56,"detail":"percentile 0.9780"},{"name":"Named in threat reports","points":0.0,"detail":"0 reports"},{"name":"Public exploit code","points":5.0,"detail":"2 PoC-in-GitHub repos"},{"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"}}