{"id":"CVE-2012-4969","aliases":["EUVD-2012-4893","GHSA-xvh2-pw6x-f8hh"],"status":"published","title":"Use-after-free vulnerability in the CMshtmlEd::Exec function in mshtml.dll in Microsoft Internet...","description":"Use-after-free vulnerability in the CMshtmlEd::Exec function in mshtml.dll in Microsoft Internet Explorer 6 through 9 allows remote attackers to execute arbitrary code via a crafted web site, as exploited in the wild in September 2012.","severity":{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.8025,"percentile":0.99622,"model":"v2026.06.15"},"facts":{"in_kev":true,"known_exploited":true,"public_exploit":true,"fix_available":false},"cwes":["CWE-416"],"published":"2012-09-18T10:00:00Z","modified":"2026-06-16T23:45:58Z","kev":{"date_added":"2022-06-08","due_date":"2022-06-22","required_action":"Apply updates per vendor instructions.","known_ransomware_use":"Unknown"},"exploitation":[{"source":"euvd","since":"2022-06-08"},{"source":"kev","since":"2022-06-08"}],"exploits":[{"source":"metasploit","id":"exploit/windows/browser/ie_execcommand_uaf","title":"MS12-063 Microsoft Internet Explorer execCommand Use-After-Free Vulnerability ","type":"exploit","platform":"Windows","date":"2012-09-14","verified":true,"url":"https://www.rapid7.com/db/modules/exploit/windows/browser/ie_execcommand_uaf"},{"source":"exploitdb","id":"EDB-21840","title":"Microsoft Internet Explorer - execCommand Use-After-Free (MS12-063) (Metasploit)","type":"remote","platform":"windows","date":"2012-10-10","verified":true,"url":"https://www.exploit-db.com/exploits/21840"}],"products":[{"vendor":"microsoft","product":"internet explorer"},{"vendor":"microsoft","product":"internet_explorer"}],"references":[{"url":"http://www.us-cert.gov/cas/techalerts/TA12-265A.html","tags":["third-party-advisory","x_refsource_CERT","x_transferred","Third Party Advisory","US Government Resource"]},{"url":"http://www.kb.cert.org/vuls/id/480095","tags":["third-party-advisory","x_refsource_CERT-VN","x_transferred","Third Party Advisory","US Government Resource"]},{"url":"https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A15729","tags":["vdb-entry","signature","x_refsource_OVAL","x_transferred","Third Party Advisory"]},{"url":"http://www.us-cert.gov/cas/techalerts/TA12-262A.html","tags":["third-party-advisory","x_refsource_CERT","x_transferred","Third Party Advisory","US Government Resource"]},{"url":"http://www.securityweek.com/new-internet-explorer-zero-day-being-exploited-wild","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"http://technet.microsoft.com/security/advisory/2757760","tags":["x_refsource_CONFIRM","x_transferred","Patch","Vendor Advisory"]},{"url":"http://www.us-cert.gov/cas/techalerts/TA12-255A.html","tags":["third-party-advisory","x_refsource_CERT","x_transferred","Third Party Advisory","US Government Resource"]},{"url":"http://blog.vulnhunt.com/index.php/2012/09/17/ie-execcommand-fuction-use-after-free-vulnerability-0day_en/","tags":["x_refsource_MISC","x_transferred","Broken Link"]},{"url":"http://dev.metasploit.com/redmine/projects/framework/repository/entry/modules/exploits/windows/browser/ie_execcommand_uaf.rb","tags":["x_refsource_MISC","x_transferred","Broken Link"]},{"url":"http://www.securitytracker.com/id?1027538","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred","Third Party Advisory","VDB Entry"]},{"url":"http://eromang.zataz.com/2012/09/16/zero-day-season-is-really-not-over-yet/","tags":["x_refsource_MISC","x_transferred","Third Party Advisory"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2012-4969","tags":["government-resource","US Government Resource"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2012-4969"},{"url":"http://blog.vulnhunt.com/index.php/2012/09/17/ie-execcommand-fuction-use-after-free-vulnerability-0day_en"},{"url":"http://eromang.zataz.com/2012/09/16/zero-day-season-is-really-not-over-yet"},{"url":"https://github.com/advisories/GHSA-xvh2-pw6x-f8hh"}],"sources":{"cve":[{"id":"CVE-2012-4969","description":"Use-after-free vulnerability in the CMshtmlEd::Exec function in mshtml.dll in Microsoft Internet Explorer 6 through 9 allows remote attackers to execute arbitrary code via a crafted web site, as exploited in the wild in September 2012.","status":"published","published":"2012-09-18T10:00:00Z","modified":"2025-10-22T00:05:46.392Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"adp"}],"cwes":["CWE-416"],"updated_at":"2026-11-02T14:34:51.584538Z"}],"euvd":[{"id":"EUVD-2012-4893","description":"Use-after-free vulnerability in the CMshtmlEd::Exec function in mshtml.dll in Microsoft Internet Explorer 6 through 9 allows remote attackers to execute arbitrary code via a crafted web site, as exploited in the wild in September 2012.","status":"published","published":"2012-09-18T10:00:00Z","modified":"2025-10-22T00:05:46Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"exploited_since":"2022-06-08","updated_at":"2026-11-02T19:49:39.244432Z"}],"ghsa":[{"id":"GHSA-xvh2-pw6x-f8hh","title":"Use-after-free vulnerability in the CMshtmlEd::Exec function in mshtml.dll in Microsoft Internet...","description":"Use-after-free vulnerability in the CMshtmlEd::Exec function in mshtml.dll in Microsoft Internet Explorer 6 through 9 allows remote attackers to execute arbitrary code via a crafted web site, as exploited in the wild in September 2012.","status":"published","published":"2022-05-17T00:22:28Z","modified":"2025-10-22T03:31:38Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-416"],"updated_at":"2026-11-02T15:04:09.843024Z"}],"kev":[{"id":"CVE-2012-4969","title":"Microsoft Internet Explorer Use-After-Free Vulnerability","description":"Microsoft Internet Explorer contains a use-after-free vulnerability that allows remote attackers to execute code via a crafted web site.","kev":{"date_added":"2022-06-08","due_date":"2022-06-22","required_action":"Apply updates per vendor instructions.","known_ransomware_use":"Unknown"},"updated_at":"2026-11-02T17:00:16.541131Z"}],"nvd":[{"id":"CVE-2012-4969","description":"Use-after-free vulnerability in the CMshtmlEd::Exec function in mshtml.dll in Microsoft Internet Explorer 6 through 9 allows remote attackers to execute arbitrary code via a crafted web site, as exploited in the wild in September 2012.","status":"published","published":"2012-09-18T10:39:14.147Z","modified":"2026-06-16T23:45:58.897Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"},{"version":"2.0","score":9.3,"vector":"AV:N/AC:M/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-416"],"updated_at":"2026-11-02T14:02:15.643902Z"}]}}