{"id":"CVE-2009-1302","url":"https://www.cyber-defence.io/tools/cve/CVE-2009-1302","generatedAt":"2026-10-27T17:44:13.164Z","title":"The browser engine in Mozilla Firefox 3.x before 3.0.9, Thunderbird before 2.0.0.22, and SeaMonkey before 1.1.16 allows remote attackers to cause a denial of service (application crash) and possibly trigger memory corruption via vectors related to (1)…","description":"The browser engine in Mozilla Firefox 3.x before 3.0.9, Thunderbird before 2.0.0.22, and SeaMonkey before 1.1.16 allows remote attackers to cause a denial of service (application crash) and possibly trigger memory corruption via vectors related to (1) nsAsyncInstantiateEvent::Run, (2) nsStyleContext::Destroy, (3) nsComputedDOMStyle::GetWidth, (4) the xslt_attributeset_ImportSameName.html test case for the XSLT stylesheet compiler, (5) nsXULDocument::SynchronizeBroadcastListener, (6) IsBindingAncestor, (7) PL_DHashTableOperate and nsEditor::EndUpdateViewBatch, and (8) gfxSkipCharsIterator::SetOffsets, and other vectors.","published":"2009-04-22T18:30:00.000Z","lastModified":"2026-06-16T23:06:59.000Z","status":"Modified","sourceIdentifier":"secalert@redhat.com","cvss":{"version":"2.0","score":5,"severity":"MEDIUM","vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P"},"cwe":["CWE-399"],"affected":["mozilla/firefox","mozilla/seamonkey","mozilla/thunderbird"],"epss":{"score":0.029,"percentile":0.86848,"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":"low","text":"Lower severity and a low EPSS score (2.90%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"http://lists.opensuse.org/opensuse-security-announce/2009-05/msg00000.html","source":"secalert@redhat.com"},{"url":"http://secunia.com/advisories/34758","source":"secalert@redhat.com"},{"url":"http://secunia.com/advisories/34780","source":"secalert@redhat.com"},{"url":"http://secunia.com/advisories/34843","source":"secalert@redhat.com"},{"url":"http://secunia.com/advisories/34894","source":"secalert@redhat.com"},{"url":"http://secunia.com/advisories/35042","source":"secalert@redhat.com"},{"url":"http://secunia.com/advisories/35065","source":"secalert@redhat.com"},{"url":"http://secunia.com/advisories/35602","source":"secalert@redhat.com"},{"url":"http://sunsolve.sun.com/search/document.do?assetkey=1-66-264308-1","source":"secalert@redhat.com"},{"url":"http://www.debian.org/security/2009/dsa-1797","source":"secalert@redhat.com"},{"url":"http://www.debian.org/security/2009/dsa-1830","source":"secalert@redhat.com"},{"url":"http://www.mandriva.com/security/advisories?name=MDVSA-2009:111","source":"secalert@redhat.com"},{"url":"http://www.mandriva.com/security/advisories?name=MDVSA-2009:141","source":"secalert@redhat.com"},{"url":"http://www.mozilla.org/security/announce/2009/mfsa2009-14.html","tags":["Vendor Advisory"],"source":"secalert@redhat.com"},{"url":"http://www.redhat.com/support/errata/RHSA-2009-0436.html","source":"secalert@redhat.com"},{"url":"http://www.securityfocus.com/bid/34656","source":"secalert@redhat.com"},{"url":"http://www.securitytracker.com/id?1022090","source":"secalert@redhat.com"},{"url":"http://www.slackware.com/security/viewer.php?l=slackware-security&y=2009&m=slackware-security.454275","source":"secalert@redhat.com"},{"url":"http://www.vupen.com/english/advisories/2009/1125","source":"secalert@redhat.com"},{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=428113","source":"secalert@redhat.com"},{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=431260","tags":["Exploit"],"source":"secalert@redhat.com"},{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=432114","tags":["Exploit"],"source":"secalert@redhat.com"},{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=454276","tags":["Exploit"],"source":"secalert@redhat.com"},{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=461053","source":"secalert@redhat.com"},{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=462517","source":"secalert@redhat.com"},{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=467881","tags":["Exploit"],"source":"secalert@redhat.com"},{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=477775","source":"secalert@redhat.com"},{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=483444","tags":["Exploit"],"source":"secalert@redhat.com"},{"url":"https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10106","source":"secalert@redhat.com"},{"url":"https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5527","source":"secalert@redhat.com"},{"url":"https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6070","source":"secalert@redhat.com"},{"url":"https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6170","source":"secalert@redhat.com"},{"url":"https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7030","source":"secalert@redhat.com"},{"url":"https://usn.ubuntu.com/764-1/","source":"secalert@redhat.com"},{"url":"https://www.redhat.com/archives/fedora-package-announce/2009-April/msg00683.html","source":"secalert@redhat.com"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2009-05/msg00000.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://secunia.com/advisories/34758","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://secunia.com/advisories/34780","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://secunia.com/advisories/34843","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://secunia.com/advisories/34894","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://secunia.com/advisories/35042","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://secunia.com/advisories/35065","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://secunia.com/advisories/35602","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://sunsolve.sun.com/search/document.do?assetkey=1-66-264308-1","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.debian.org/security/2009/dsa-1797","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.debian.org/security/2009/dsa-1830","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.mandriva.com/security/advisories?name=MDVSA-2009:111","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.mandriva.com/security/advisories?name=MDVSA-2009:141","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.mozilla.org/security/announce/2009/mfsa2009-14.html","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.redhat.com/support/errata/RHSA-2009-0436.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securityfocus.com/bid/34656","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securitytracker.com/id?1022090","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.slackware.com/security/viewer.php?l=slackware-security&y=2009&m=slackware-security.454275","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.vupen.com/english/advisories/2009/1125","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=428113","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=431260","tags":["Exploit"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=432114","tags":["Exploit"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=454276","tags":["Exploit"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=461053","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=462517","source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2009-1302","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."}