{"id":"CVE-2017-0037","published":"2017-02-26T23:59:00Z","modified":"2026-06-17T00:56:57Z","title":"Microsoft Edge and Internet Explorer Type Confusion Vulnerability","vendor":"Microsoft","product":"Edge and Internet Explorer","tier":"core","eol":null,"description":{"text":"Microsoft Internet Explorer 10 and 11 and Microsoft Edge have a type confusion issue in the Layout::MultiColumnBoxBuilder::HandleColumnBreakOnColumnSpanningElement function in mshtml.dll, which allows remote attackers to execute arbitrary code via vectors involving a crafted Cascading Style Sheets (CSS) token sequence and crafted JavaScript code that operates on a TH element.","provenance":"source","from":"NVD"},"summary":{"text":"A type confusion flaw in the Layout::MultiColumnBoxBuilder::HandleColumnBreakOnColumnSpanningElement function of mshtml.dll affects Microsoft Internet Explorer 10 and 11 and Microsoft Edge. An remote attacker who can get a user to load a page containing a crafted CSS token sequence and JavaScript operating on a TH element can execute arbitrary code, with no authentication required but a high-complexity attack.","provenance":"ai","model":"claude-haiku-5-5","generatedAt":"2026-10-31T04:54:26Z"},"cvss":{"score":8.1,"severity":"HIGH","version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","provenance":"source","from":"NVD"},"epss":{"score":0.80386,"percentile":0.99621,"date":"2026-10-30","provenance":"source"},"kev":{"dateAdded":"2022-03-28","dueDate":"2022-04-18","ransomware":false,"requiredAction":"Apply updates per vendor instructions.","notes":"https://nvd.nist.gov/vuln/detail/CVE-2017-0037","provenance":"source"},"vulncheckKev":{"dateAdded":"2017-08-30","exploitedFirstSeen":"2017-08-30","ransomware":false,"evidence":[{"url":"https://www.threatstop.com/blog/bi-weekly-security-update-8/18/2017-0","date":"2017-08-30"},{"url":"https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json","date":"2022-03-28"}],"evidenceTotal":2,"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-704","name":"Incorrect Type Conversion or Cast"}],"references":[{"url":"http://www.securityfocus.com/bid/96088","tags":["Broken Link","Third Party Advisory","VDB Entry"]},{"url":"http://www.securitytracker.com/id/1037905","tags":["Broken Link","Third Party Advisory","VDB Entry"]},{"url":"http://www.securitytracker.com/id/1037906","tags":["Broken Link","Third Party Advisory","VDB Entry"]},{"url":"https://0patch.blogspot.si/2017/03/0patching-another-0-day-internet.html","tags":["Exploit","Third Party Advisory"]},{"url":"https://bugs.chromium.org/p/project-zero/issues/detail?id=1011","tags":["Exploit","Issue Tracking","Third Party Advisory"]},{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-0037","tags":["Patch","Vendor Advisory"]},{"url":"https://www.exploit-db.com/exploits/41454/","tags":["Exploit","Third Party Advisory","VDB Entry"]},{"url":"https://www.exploit-db.com/exploits/42354/","tags":["Exploit","Third Party Advisory","VDB Entry"]},{"url":"https://www.exploit-db.com/exploits/43125/","tags":["Exploit","Third Party Advisory","VDB Entry"]},{"url":"http://www.securityfocus.com/bid/96088","tags":["Broken Link","Third Party Advisory","VDB Entry"]},{"url":"http://www.securitytracker.com/id/1037905","tags":["Broken Link","Third Party Advisory","VDB Entry"]},{"url":"http://www.securitytracker.com/id/1037906","tags":["Broken Link","Third Party Advisory","VDB Entry"]},{"url":"https://0patch.blogspot.si/2017/03/0patching-another-0-day-internet.html","tags":["Exploit","Third Party Advisory"]},{"url":"https://bugs.chromium.org/p/project-zero/issues/detail?id=1011","tags":["Exploit","Issue Tracking","Third Party Advisory"]},{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-0037","tags":["Patch","Vendor Advisory"]},{"url":"https://www.exploit-db.com/exploits/41454/","tags":["Exploit","Third Party Advisory","VDB Entry"]},{"url":"https://www.exploit-db.com/exploits/42354/","tags":["Exploit","Third Party Advisory","VDB Entry"]},{"url":"https://www.exploit-db.com/exploits/43125/","tags":["Exploit","Third Party Advisory","VDB Entry"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-0037","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: Browser drive-by via crafted web content","mappingType":"exploitation_technique","evidence":[{"from":"description","quote":"crafted JavaScript code that operates on a TH element","start":324,"end":377}],"model":"claude-haiku-5-5","confidence":"low","confidenceNote":"server-side bug exploitable without user interaction; client-execution technique does not fit"},{"id":"T1203","name":"Exploitation for Client Execution","tactics":["execution"],"provenance":"ai","basis":"ai-mapping","bases":["ai-mapping"],"basisDetail":"claude-haiku-5-5: Code execution within browser process","mappingType":"primary_impact","evidence":[{"from":"description","quote":"allows remote attackers to execute arbitrary code","start":194,"end":243}],"model":"claude-haiku-5-5","confidence":"low","confidenceNote":"server-side bug exploitable without user interaction; client-execution technique does not fit"}],"reports":[],"affected":[],"advisories":[],"euvd":{"id":"EUVD-2017-0404","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2017-0404","exploited":true,"exploitedSince":"2022-03-28","provenance":"source"},"exploits":[{"id":41454,"url":"https://www.exploit-db.com/exploits/41454","title":"Microsoft Edge / Internet Explorer - 'HandleColumnBreakOnColumnSpanningElement' Type Confusion","type":"dos","platform":"windows","date":"2017-02-24","verified":true,"provenance":"source"},{"id":42354,"url":"https://www.exploit-db.com/exploits/42354","title":"Microsoft Internet Explorer - 'mshtml.dll' Remote Code Execution (MS17-007)","type":"remote","platform":"windows_x86-64","date":"2017-07-24","verified":false,"provenance":"source"},{"id":43125,"url":"https://www.exploit-db.com/exploits/43125","title":"Microsoft Internet Explorer 11 (Windows 7 x86) - 'mshtml.dll' Remote Code Execution (MS17-007)","type":"remote","platform":"windows_x86","date":"2017-10-17","verified":true,"provenance":"source"}],"exploitSources":{"exploitdb":{"count":3,"earliest":"2017-02-24"},"first":{"date":"2017-02-24","source":"Exploit-DB","url":"https://www.exploit-db.com/exploits/41454"},"provenance":"source"},"exploitRefs":["https://0patch.blogspot.si/2017/03/0patching-another-0-day-internet.html","https://bugs.chromium.org/p/project-zero/issues/detail?id=1011","https://www.exploit-db.com/exploits/41454/","https://www.exploit-db.com/exploits/42354/","https://www.exploit-db.com/exploits/43125/"],"flow":[{"stage":"related","techniques":["T1189","T1203"],"provenance":"ai","lowConfidence":true}],"timeline":[{"date":"2017-02-24","kind":"exploit-public","label":"First public exploit: Exploit-DB (EDB-41454)","url":"https://www.exploit-db.com/exploits/41454","provenance":"source"},{"date":"2017-02-26","kind":"published","label":"Published 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percentile","points":19.92,"detail":"percentile 0.9962"},{"name":"Named in threat reports","points":0.0,"detail":"0 reports"},{"name":"Public exploit code","points":5.0,"detail":"5 NVD references tagged Exploit; 3 Exploit-DB entries"},{"name":"Mentioned in OTX pulses","points":3.0,"detail":"50 pulses"},{"name":"CVSS severity","points":5.67,"detail":"base score 8.1"},{"name":"End-of-life product","points":0.0,"detail":"supported or unknown"}]},"lineage":{"familyId":"fam-class-microsoft-edge-cwe-843"}}