{"id":"CVE-2012-4792","published":"2012-12-30T18:55:01Z","modified":"2026-06-16T23:45:43Z","title":"Microsoft Internet Explorer Use-After-Free Vulnerability","vendor":"Microsoft","product":"Internet Explorer","tier":"core","eol":null,"description":{"text":"Use-after-free vulnerability in Microsoft Internet Explorer 6 through 8 allows remote attackers 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, and exploited in the wild in December 2012.","provenance":"source","from":"NVD"},"summary":{"text":"Microsoft Internet Explorer versions 6 through 8 contain a use-after-free flaw in the browser's object handling, which can be triggered by accessing an object that was either never properly allocated or has already been deleted, as demonstrated with a CDwnBindInfo object. A remote attacker can exploit this by luring a user to a crafted web site, which requires user interaction to visit the page and allows arbitrary code execution without authentication.","provenance":"ai","model":"claude-haiku-5-5","generatedAt":"2026-10-23T07:10:20Z"},"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":0.78823,"percentile":0.9959,"date":"2026-10-28","provenance":"source"},"kev":{"dateAdded":"2024-07-23","dueDate":"2024-08-13","ransomware":false,"requiredAction":"The impacted product is end-of-life and should be disconnected if still in use.","notes":"https://learn.microsoft.com/en-us/lifecycle/products/internet-explorer-11; https://nvd.nist.gov/vuln/detail/CVE-2012-4792","provenance":"source"},"vulncheckKev":{"dateAdded":"2012-12-29","exploitedFirstSeen":"2012-12-29","ransomware":false,"evidence":[{"url":"https://eromang.zataz.com/2012/12/29/attack-and-ie-0day-informations-used-against-council-on-foreign-relations/","date":"2012-12-29"},{"url":"https://www.cve.org/CVERecord?id=CVE-2012-4792","date":"2012-12-30"},{"url":"https://cisa.gov/news-events/alerts/2013/01/15/microsoft-releases-update-internet-explorer-vulnerability-cve-2012","date":"2013-02-06"},{"url":"https://kung_foo.keybase.pub/papers_and_presentations/Unveiling_an_Indian_Cyberattack_Infrastructure.pdf","date":"2013-05-01"},{"url":"https://www.crowdstrike.com/blog/department-labor-strategic-web-compromise/","date":"2013-05-03"},{"url":"https://paper.seebug.org/papers/APT/APT_CyberCriminal_Campagin/2014/Dragonfly_Threat_Against_Western_Energy_Suppliers.pdf","date":"2014-07-07"},{"url":"https://blog.talosintelligence.com/2014/10/threat-spotlight-group-72.html","date":"2014-10-14"},{"url":"https://www.bleepingcomputer.com/news/security/us-arrests-chinese-man-involved-with-sakula-malware-used-in-opm-and-anthem-hacks/","date":"2014-11-24"},{"url":"https://cisa.gov/news-events/alerts/2015/04/29/top-30-targeted-high-risk-vulnerabilities","date":"2016-09-29"},{"url":"https://www.us-cert.gov/ncas/alerts/TA15-119A","date":"2016-09-29"}],"evidenceTotal":14,"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, 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Interpreter","tactics":["execution"],"provenance":"ai","basis":"ai-mapping","bases":["ai-mapping"],"basisDetail":"claude-haiku-5-5: Arbitrary code execution after successful exploitation","mappingType":"primary_impact","evidence":[{"from":"description","quote":"allows remote attackers to execute arbitrary code","start":72,"end":121}],"model":"claude-haiku-5-5","confidence":"medium","confidenceNote":"AI-mapped from the description (quote-validated, not expert-reviewed)"}],"reports":[],"affected":[],"advisories":[],"euvd":{"id":"EUVD-2012-4717","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2012-4717","exploited":true,"exploitedSince":"2024-07-23","provenance":"source"},"exploits":[{"id":23754,"url":"https://www.exploit-db.com/exploits/23754","title":"Microsoft Internet Explorer - CDwnBindInfo Object Use-After-Free (Metasploit)","type":"remote","platform":"windows","date":"2012-12-31","verified":true,"provenance":"source"},{"id":23785,"url":"https://www.exploit-db.com/exploits/23785","title":"Microsoft Internet Explorer - CButton Object Use-After-Free (Metasploit)","type":"remote","platform":"windows","date":"2013-01-02","verified":true,"provenance":"source"}],"exploitSources":{"exploitdb":{"count":2,"earliest":"2012-12-31"},"pocGithub":{"count":1,"skipped":0,"earliest":"2015-05-03","earliestUrl":"https://github.com/WizardVan/CVE-2012-4792","repos":[{"name":"WizardVan/CVE-2012-4792","url":"https://github.com/WizardVan/CVE-2012-4792","stars":0,"created":"2015-05-03"}]},"metasploit":[{"name":"MS13-008 Microsoft Internet Explorer CButton Object Use-After-Free 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unknown"}]},"lineage":{"familyId":"fam-class-microsoft-internet-explorer-cwe-416"}}