{"id":"CVE-2017-0037","kind":"vulnerability","aliases":["CVE-2017-0037"],"related":[],"title":"Microsoft Edge and Internet Explorer: Microsoft Edge and Internet Explorer Type Confusion Vulnerability","description":"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.","summary":"Microsoft Edge and Internet Explorer have a type confusion flaw in mshtml.dll that lets a crafted web page run code. An attacker who gets a user to load that page can execute code as that user.","severity":"high","cvss":8.1,"epss":0.80386,"exploited":true,"exploited_at":"2022-03-28T00:00:00+00:00","products":[{"name":"Microsoft Edge and Internet Explorer","fixed":[],"affected":"","ecosystem":"vendor"}],"ecosystems":["vendor"],"tags":["exploited","internet-explorer","microsoft-edge","other","windows"],"not_affected_if":["unpatched-systems-only"],"how_to_check":null,"fix":"Apply the Microsoft security updates for Edge and Internet Explorer per vendor instructions, as CISA requires. Fixed versions are not stated in the sources.","status":"open","published_at":"2017-02-26T23:59:00+00:00","first_seen_at":"2026-10-23T19:11:52+00:00","triaged_at":"2026-10-23T21:19:45+00:00","updated_at":"2026-10-23T21:57:35+00:00","category":"other","confidence":0.6,"triage":{"at":"2026-10-23T21:19:45Z","model":"claude-haiku-5-5","output":{"fix":"Apply the Microsoft security updates for Edge and Internet Explorer per vendor instructions, as CISA requires. Fixed versions are not stated in the sources.","reach":"internet","impact":"high","summary":"Microsoft Edge and Internet Explorer have a type confusion flaw in mshtml.dll that lets a crafted web page run code. An attacker who gets a user to load that page can execute code as that user.","category":"other","who_cares":["windows","internet-explorer","microsoft-edge"],"confidence":0.6,"needs_auth":"no","worst_case":"Attacker runs code as the browsing user after a victim visits a page","analyst_note":"Confirm affected and fixed Internet Explorer and Edge builds from the Microsoft advisory for CVE-2017-0037 and add a check command for the team.","how_to_check":"unknown","needs_analyst":true,"not_affected_if":["unpatched-systems-only"],"user_interaction":"yes","needs_special_setup":"no","severity_if_unknown":"unknown"},"cost_usd":0.000465,"input_tokens":2845,"output_tokens":361,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-0037':16A,19A '-2017':15A,18A '10':73C '11':75C 'allow':93C 'and':22A 'arbitrari':98C 'attack':55B,95C 'cascad':105C 'code':53B,66B,99C,114C 'confus':12A,42B,82C 'craft':49B,104C,112C 'css':108C 'cve':14A,17A 'edg':2A,7A,31B,35B,78C 'edge':21A 'element':120C 'execut':65B,97C 'exploit':25B 'explor':5A,10A,28B,38B,72C 'explorer':24A 'flaw':43B 'function':89C 'get':57B 'handlecolumnbreakoncolumnspanningel':88C 'internet':4A,9A,23A,27B,37B,71C 'internet-explor':26B 'involv':102C 'issu':83C 'javascript':113C 'layout':86C 'let':47B 'load':61B 'microsoft':1A,6A,20A,30B,34B,70C,77C 'microsoft-edg':29B 'mshtml.dll':45B,91C 'multicolumnboxbuild':87C 'oper':116C 'page':51B,63B 'remot':94C 'run':52B 'sequenc':110C 'sheet':107C 'style':106C 'th':119C 'token':109C 'type':11A,41B,81C 'user':59B,69B 'vector':101C 'via':100C 'vulner':13A 'web':50B 'window':33B","nicknames":[],"mitigations":[],"who_affected":null,"tier":null,"verified":{},"analyst_revisit_at":null,"first_public_at":"2017-02-26T23:59:00+00:00","kev":{"dateAdded":"2022-03-28","dueDate":"2022-04-18","requiredAction":"Apply updates per vendor instructions.","knownRansomwareCampaignUse":"Unknown"},"cvss_vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","cvss_by":"nvd@nist.gov","poc_count":0,"sources":[{"source":"kev","external_id":"CVE-2017-0037","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2017-0037","severity":null,"published_at":"2022-03-28T00:00:00+00:00","modified_at":null,"first_seen_at":"2026-10-23T19:11:52+00:00","fetched_at":"2026-10-25T17:39:57+00:00","note":null},{"source":"epss","external_id":"CVE-2017-0037","url":"https://api.first.org/data/v1/epss?cve=CVE-2017-0037","severity":null,"published_at":null,"modified_at":null,"first_seen_at":"2026-10-23T19:13:45+00:00","fetched_at":"2026-10-23T19:13:45+00:00","note":null},{"source":"nvd","external_id":"CVE-2017-0037","url":"https://nvd.nist.gov/vuln/detail/CVE-2017-0037","severity":null,"published_at":"2017-02-26T23:59:00+00:00","modified_at":"2026-06-17T00:56:57+00:00","first_seen_at":"2026-10-23T21:57:35+00:00","fetched_at":"2026-10-23T21:57:35+00:00","note":null}],"documents":[],"notice":"Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai"}