{"id":"CVE-2016-1646","published":"2016-03-29T10:59:00Z","modified":"2026-06-17T00:42:19Z","title":"Google Chromium V8 Out-of-Bounds Read Vulnerability","vendor":"Google","product":"Chromium V8","tier":"core","eol":null,"description":{"text":"The Array.prototype.concat implementation in builtins.cc in Google V8, as used in Google Chrome before 49.0.2623.108, does not properly consider element data types, which allows remote attackers to cause a denial of service (out-of-bounds read) or possibly have unspecified other impact via crafted JavaScript code.","provenance":"source","from":"NVD"},"summary":{"text":"The flaw is an out-of-bounds read in the Array.prototype.concat implementation in builtins.cc within Google's V8 JavaScript engine, as used in Google Chromium, because it does not properly account for element data types. A remote attacker can exploit it without authentication or privileges by luring a user to a page containing crafted JavaScript, which could cause a denial of service or possibly other unspecified impact.","provenance":"ai","model":"claude-haiku-5-5","generatedAt":"2026-10-23T07:10:30Z"},"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":0.4811,"percentile":0.98854,"date":"2026-10-28","provenance":"source"},"kev":{"dateAdded":"2022-06-08","dueDate":"2022-06-22","ransomware":false,"requiredAction":"Apply updates per vendor instructions.","notes":"https://nvd.nist.gov/vuln/detail/CVE-2016-1646","provenance":"source"},"vulncheckKev":{"dateAdded":"2019-09-24","exploitedFirstSeen":"2019-09-24","ransomware":false,"evidence":[{"url":"https://citizenlab.ca/2019/09/poison-carp-tibetan-groups-targeted-with-1-click-mobile-exploits/","date":"2019-09-24"},{"url":"https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json","date":"2022-06-08"},{"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-125","name":"Out-of-bounds Read"},{"id":"CWE-119","name":"Improper Restriction of Operations within the Bounds of a Memory Buffer"}],"references":[{"url":"http://googlechromereleases.blogspot.com/2016/03/stable-channel-update_24.html","tags":["Release Notes","Vendor Advisory"]},{"url":"http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00000.html","tags":["Mailing List","Third Party Advisory"]},{"url":"http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00001.html","tags":["Mailing List","Third Party Advisory"]},{"url":"http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00039.html","tags":["Mailing List","Third Party Advisory"]},{"url":"http://rhn.redhat.com/errata/RHSA-2016-0525.html","tags":["Third Party Advisory"]},{"url":"http://www.debian.org/security/2016/dsa-3531","tags":["Mailing List","Third Party Advisory"]},{"url":"http://www.securitytracker.com/id/1035423","tags":["Broken Link","Third Party Advisory","VDB Entry"]},{"url":"http://www.ubuntu.com/usn/USN-2955-1","tags":["Third Party Advisory"]},{"url":"https://code.google.com/p/chromium/issues/detail?id=594574","tags":["Exploit","Issue Tracking","Mailing List"]},{"url":"https://codereview.chromium.org/1804963002/","tags":["Patch"]},{"url":"https://security.gentoo.org/glsa/201605-02","tags":["Third Party Advisory"]},{"url":"http://googlechromereleases.blogspot.com/2016/03/stable-channel-update_24.html","tags":["Release Notes","Vendor Advisory"]},{"url":"http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00000.html","tags":["Mailing List","Third Party Advisory"]},{"url":"http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00001.html","tags":["Mailing List","Third Party Advisory"]},{"url":"http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00039.html","tags":["Mailing List","Third Party Advisory"]},{"url":"http://rhn.redhat.com/errata/RHSA-2016-0525.html","tags":["Third Party Advisory"]},{"url":"http://www.debian.org/security/2016/dsa-3531","tags":["Mailing List","Third Party Advisory"]},{"url":"http://www.securitytracker.com/id/1035423","tags":["Broken Link","Third Party Advisory","VDB Entry"]},{"url":"http://www.ubuntu.com/usn/USN-2955-1","tags":["Third Party Advisory"]},{"url":"https://code.google.com/p/chromium/issues/detail?id=594574","tags":["Exploit","Issue Tracking","Mailing List"]},{"url":"https://codereview.chromium.org/1804963002/","tags":["Patch"]},{"url":"https://security.gentoo.org/glsa/201605-02","tags":["Third Party Advisory"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2016-1646","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 malicious web content in Chrome","mappingType":"exploitation_technique","evidence":[{"from":"description","quote":"via crafted JavaScript code","start":287,"end":314}],"model":"claude-haiku-5-5","confidence":"medium","confidenceNote":"AI-mapped from the description (quote-validated, not expert-reviewed)"},{"id":"T1499.004","name":"Application or System Exploitation","tactics":["impact"],"provenance":"ai","basis":"ai-mapping","bases":["ai-mapping"],"basisDetail":"claude-haiku-5-5: Out-of-bounds read crashes the browser process","mappingType":"primary_impact","evidence":[{"from":"description","quote":"cause a denial of service (out-of-bounds read)","start":198,"end":244}],"model":"claude-haiku-5-5","confidence":"medium","confidenceNote":"AI-mapped from the description (quote-validated, not expert-reviewed)"}],"reports":[],"affected":[],"advisories":[],"euvd":{"id":"EUVD-2016-2741","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2016-2741","exploited":true,"exploitedSince":"2022-06-08","provenance":"source"},"exploits":[],"exploitSources":null,"exploitRefs":["https://code.google.com/p/chromium/issues/detail?id=594574"],"flow":[{"stage":"exploitation","techniques":["T1189"],"provenance":"ai"},{"stage":"primary","techniques":["T1499.004"],"provenance":"ai"}],"timeline":[{"date":"2016-03-29","kind":"published","label":"Published (NVD)","url":"https://nvd.nist.gov/vuln/detail/CVE-2016-1646","provenance":"source"},{"date":"2019-09-24","kind":"exploited-reported","label":"Exploitation first reported (VulnCheck KEV evidence)","url":"https://citizenlab.ca/2019/09/poison-carp-tibetan-groups-targeted-with-1-click-mobile-exploits/","provenance":"source"},{"date":"2022-06-08","kind":"kev","label":"Added to CISA KEV","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","provenance":"source"},{"date":"2022-06-08","kind":"euvd-exploited","label":"ENISA EUVD: exploited","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2016-2741","provenance":"source"}],"speed":{"daysToPublicExploit":null,"firstExploitFrom":null,"daysToKev":2262},"priority":{"score":68.9,"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 2592 days ago"},{"name":"Known ransomware use","points":0.0,"detail":"not known"},{"name":"EPSS percentile","points":19.77,"detail":"percentile 0.9885"},{"name":"Named in threat reports","points":0.0,"detail":"0 reports"},{"name":"Public exploit code","points":5.0,"detail":"1 NVD reference 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-125"}}