{"id":"CVE-2012-4792","kind":"vulnerability","aliases":["CVE-2012-4792"],"related":[],"title":"Use-after-free vulnerability in Microsoft Internet Explorer 6 through 8 allows remote attackers to execute arbitrary…","description":"Microsoft Internet Explorer contains a use-after-free vulnerability that allows a remote attacker to execute arbitrary code via a crafted web site that triggers access to an object that (1) was not properly allocated or (2) is deleted, as demonstrated by a CDwnBindInfo object.\n\nCISA required action: The impacted product is end-of-life and should be disconnected if still in use.","summary":"Microsoft Internet Explorer has a use-after-free bug that lets a crafted web page run code on the visitor's machine. It is listed in CISA's Known Exploited Vulnerabilities catalog, so attacks have been seen in the wild.","severity":"critical","cvss":9.3,"epss":null,"exploited":true,"exploited_at":"2024-07-23T00:00:00+00:00","products":[{"name":"Microsoft Internet Explorer","fixed":[],"affected":"","ecosystem":"vendor"},{"name":"microsoft internet explorer","fixed":[],"affected":"= 6","ecosystem":"vendor"},{"name":"microsoft internet explorer","fixed":[],"affected":"= 7","ecosystem":"vendor"},{"name":"microsoft internet explorer","fixed":[],"affected":"= 8","ecosystem":"vendor"}],"ecosystems":["vendor"],"tags":["browser","exploited","infrastructure","internet-explorer","windows"],"not_affected_if":["no-ie-installed"],"how_to_check":"Check whether any machine still runs Internet Explorer, for example with 'reg query \"HKLM\\SOFTWARE\\Microsoft\\Internet Explorer\" /v svcVersion' on Windows.","fix":"Remove or disconnect Internet Explorer from use, as CISA requires for this end-of-life product.","status":"open","published_at":"2012-12-30T18:55:01+00:00","first_seen_at":"2026-10-23T19:11:51+00:00","triaged_at":"2026-10-23T20:58:33+00:00","updated_at":"2026-10-23T22:29:05+00:00","category":"infrastructure","confidence":0.7,"triage":{"at":"2026-10-23T20:58:33Z","model":"claude-haiku-5-5","output":{"fix":"Remove or disconnect Internet Explorer from use, as CISA requires for this end-of-life product.\nunknown","reach":"internet","impact":"high","summary":"Microsoft Internet Explorer has a use-after-free bug that lets a crafted web page run code on the visitor's machine. It is listed in CISA's Known Exploited Vulnerabilities catalog, so attacks have been seen in the wild.","category":"infrastructure","who_cares":["windows","internet-explorer","browser"],"confidence":0.7,"needs_auth":"no","worst_case":"Attacker runs arbitrary code on the visitor's computer via a malicious site.","analyst_note":"Confirm the affected and fixed IE versions and any vendor patch from the Microsoft security advisory for CVE-2012-4792; the sources give no version data.","how_to_check":"Check whether any machine still runs Internet Explorer, for example with 'reg query \"HKLM\\SOFTWARE\\Microsoft\\Internet Explorer\" /v svcVersion' on Windows.\nunknown\nunknown","needs_analyst":true,"not_affected_if":["no-ie-installed"],"user_interaction":"yes","needs_special_setup":"no","severity_if_unknown":"high"},"cost_usd":0.000505,"input_tokens":2856,"output_tokens":439,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-2012':20A,23A '-4792':21A,24A '1':116C '2':122C '6':10A '8':12A 'access':111C 'action':133C 'alloc':120C 'allow':13A,96C 'arbitrari':18A,102C 'attack':15A,78B,99C 'browser':37B 'bug':53B 'catalog':76B 'cdwnbindinfo':129C 'cisa':71B,131C 'code':61B,103C 'contain':88C 'craft':57B,106C 'cve':19A,22A 'delet':124C 'demonstr':126C 'disconnect':145C 'end':139C 'end-of-lif':138C 'execut':17A,101C 'exploit':38B,74B 'explor':9A,42B,46B,87C 'explorer':27A,30A,33A,36A 'free':4A,52B,93C 'impact':135C 'infrastructur':39B 'internet':8A,26A,29A,32A,35A,41B,45B,86C 'internet-explor':40B 'known':73B 'let':55B 'life':141C 'list':69B 'machin':66B 'microsoft':7A,25A,28A,31A,34A,44B,85C 'object':114C,130C 'page':59B 'product':136C 'proper':119C 'remot':14A,98C 'requir':132C 'run':60B 'seen':81B 'site':108C 'still':147C 'trigger':110C 'use':2A,50B,91C,149C 'use-after-fre':1A,49B,90C 'via':104C 'visitor':64B 'vulner':5A,75B,94C 'web':58B,107C 'wild':84B 'window':43B","nicknames":[],"mitigations":[],"who_affected":null,"tier":null,"verified":{},"analyst_revisit_at":null,"first_public_at":"2012-12-30T18:55:01+00:00","kev":{"dateAdded":"2024-07-23","dueDate":"2024-08-13","requiredAction":"The impacted product is end-of-life and should be disconnected if still in use.","knownRansomwareCampaignUse":"Unknown"},"cvss_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","cvss_by":"nvd@nist.gov","poc_count":0,"sources":[{"source":"kev","external_id":"CVE-2012-4792","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2012-4792","severity":null,"published_at":"2024-07-23T00:00:00+00:00","modified_at":null,"first_seen_at":"2026-10-23T19:11:51+00:00","fetched_at":"2026-10-25T10:39:05+00:00","note":null},{"source":"nvd","external_id":"CVE-2012-4792","url":"https://nvd.nist.gov/vuln/detail/CVE-2012-4792","severity":null,"published_at":"2012-12-30T18:55:01+00:00","modified_at":"2026-06-16T23:45:43+00:00","first_seen_at":"2026-10-23T22:29:05+00:00","fetched_at":"2026-10-23T22:29:05+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"}