{"id":"CVE-2012-0463","url":"https://www.cyber-defence.io/tools/cve/CVE-2012-0463","generatedAt":"2026-10-28T03:21:27.455Z","title":"The nsWindow implementation in the browser engine in Mozilla Firefox before 3.6.28 and 4.x through 10.0, Firefox ESR 10.x before 10.0.3, Thunderbird before 3.1.20 and 5.0 through 10.0, Thunderbird ESR 10.x before 10.0.3, and SeaMonkey before 2.8 does…","description":"The nsWindow implementation in the browser engine in Mozilla Firefox before 3.6.28 and 4.x through 10.0, Firefox ESR 10.x before 10.0.3, Thunderbird before 3.1.20 and 5.0 through 10.0, Thunderbird ESR 10.x before 10.0.3, and SeaMonkey before 2.8 does not check the validity of an instance after event dispatching, which allows remote attackers to cause a denial of service (memory corruption and application crash) or possibly execute arbitrary code via unknown vectors, as demonstrated by Mobile Firefox on Android.","published":"2012-03-14T19:55:02.000Z","lastModified":"2026-06-16T23:37:20.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"2.0","score":7.5,"severity":"HIGH","vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P"},"cwe":["CWE-20"],"affected":["mozilla/firefox","mozilla/thunderbird","mozilla/thunderbird esr","mozilla/seamonkey"],"epss":{"score":0.04151,"percentile":0.90794,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (4.15%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"http://lists.opensuse.org/opensuse-security-announce/2012-03/msg00014.html","source":"cve@mitre.org"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2012-03/msg00015.html","source":"cve@mitre.org"},{"url":"http://lists.opensuse.org/opensuse-updates/2012-03/msg00042.html","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"http://secunia.com/advisories/48402","source":"cve@mitre.org"},{"url":"http://secunia.com/advisories/48553","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"http://secunia.com/advisories/48561","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"http://secunia.com/advisories/48624","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"http://secunia.com/advisories/48629","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"http://www.mozilla.org/security/announce/2012/mfsa2012-19.html","tags":["Vendor Advisory"],"source":"cve@mitre.org"},{"url":"http://www.securityfocus.com/bid/52466","tags":["Third Party Advisory","VDB Entry"],"source":"cve@mitre.org"},{"url":"http://www.securitytracker.com/id?1026801","source":"cve@mitre.org"},{"url":"http://www.securitytracker.com/id?1026803","source":"cve@mitre.org"},{"url":"http://www.securitytracker.com/id?1026804","source":"cve@mitre.org"},{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=688208","tags":["Issue Tracking","Vendor Advisory"],"source":"cve@mitre.org"},{"url":"https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A15143","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2012-03/msg00014.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2012-03/msg00015.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.opensuse.org/opensuse-updates/2012-03/msg00042.html","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://secunia.com/advisories/48402","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://secunia.com/advisories/48553","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://secunia.com/advisories/48561","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://secunia.com/advisories/48624","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://secunia.com/advisories/48629","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.mozilla.org/security/announce/2012/mfsa2012-19.html","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securityfocus.com/bid/52466","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securitytracker.com/id?1026801","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securitytracker.com/id?1026803","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securitytracker.com/id?1026804","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=688208","tags":["Issue Tracking","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A15143","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2012-0463","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."}