{"id":"CVE-2012-1539","url":"https://www.cyber-defence.io/tools/cve/CVE-2012-1539","generatedAt":"2026-11-05T08:05:27.357Z","title":"Use-after-free vulnerability in Microsoft Internet Explorer 9 allows remote attackers to execute arbitrary code via a crafted web site, aka \"CTreePos Use After Free Vulnerability.\"","description":"Use-after-free vulnerability in Microsoft Internet Explorer 9 allows remote attackers to execute arbitrary code via a crafted web site, aka \"CTreePos Use After Free Vulnerability.\"","published":"2012-11-14T00:55:01.000Z","lastModified":"2026-06-16T23:39:43.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.1","score":8.1,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-399","CWE-416"],"affected":["microsoft/internet explorer"],"epss":{"score":0.2537,"percentile":0.9795,"date":"2026-11-04","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"urgent","text":"EPSS puts the probability of exploitation in the next 30 days at 25.4%, higher than 98% of all known CVEs. Patch or mitigate before the next change window."},"changes":[],"references":[{"url":"http://secunia.com/advisories/51202","source":"cve@mitre.org"},{"url":"http://www.securityfocus.com/bid/56421","source":"cve@mitre.org"},{"url":"http://www.securitytracker.com/id?1027749","source":"cve@mitre.org"},{"url":"http://www.us-cert.gov/cas/techalerts/TA12-318A.html","tags":["US Government Resource"],"source":"cve@mitre.org"},{"url":"https://docs.microsoft.com/en-us/security-updates/securitybulletins/2012/ms12-071","source":"cve@mitre.org"},{"url":"https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A15886","source":"cve@mitre.org"},{"url":"http://secunia.com/advisories/51202","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securityfocus.com/bid/56421","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securitytracker.com/id?1027749","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.us-cert.gov/cas/techalerts/TA12-318A.html","tags":["US Government Resource"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://docs.microsoft.com/en-us/security-updates/securitybulletins/2012/ms12-071","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A15886","source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2012-1539","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}