{"id":"CVE-2011-2999","url":"https://www.cyber-defence.io/tools/cve/CVE-2011-2999","generatedAt":"2026-10-27T18:46:43.885Z","title":"Mozilla Firefox before 3.6.23 and 4.x through 5, Thunderbird before 6.0, and SeaMonkey before 2.3 do not properly handle \"location\" as the name of a frame, which allows remote attackers to bypass the Same Origin Policy via a crafted web site, a…","description":"Mozilla Firefox before 3.6.23 and 4.x through 5, Thunderbird before 6.0, and SeaMonkey before 2.3 do not properly handle \"location\" as the name of a frame, which allows remote attackers to bypass the Same Origin Policy via a crafted web site, a different vulnerability than CVE-2010-0170.","published":"2011-09-29T00:55:01.000Z","lastModified":"2026-06-16T23:32:24.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"2.0","score":4.3,"severity":"MEDIUM","vector":"AV:N/AC:M/Au:N/C:N/I:P/A:N"},"cwe":["CWE-264"],"affected":["mozilla/firefox","mozilla/thunderbird","mozilla/seamonkey"],"epss":{"score":0.01095,"percentile":0.65309,"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 (1.09%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"http://lists.opensuse.org/opensuse-security-announce/2011-11/msg00020.html","source":"cve@mitre.org"},{"url":"http://lists.opensuse.org/opensuse-updates/2011-10/msg00002.html","source":"cve@mitre.org"},{"url":"http://secunia.com/advisories/46315","source":"cve@mitre.org"},{"url":"http://www.debian.org/security/2011/dsa-2312","source":"cve@mitre.org"},{"url":"http://www.debian.org/security/2011/dsa-2313","source":"cve@mitre.org"},{"url":"http://www.debian.org/security/2011/dsa-2317","source":"cve@mitre.org"},{"url":"http://www.mandriva.com/security/advisories?name=MDVSA-2011:139","source":"cve@mitre.org"},{"url":"http://www.mandriva.com/security/advisories?name=MDVSA-2011:140","source":"cve@mitre.org"},{"url":"http://www.mandriva.com/security/advisories?name=MDVSA-2011:141","source":"cve@mitre.org"},{"url":"http://www.mozilla.org/security/announce/2011/mfsa2011-38.html","tags":["Vendor Advisory"],"source":"cve@mitre.org"},{"url":"http://www.redhat.com/support/errata/RHSA-2011-1341.html","source":"cve@mitre.org"},{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=665548","source":"cve@mitre.org"},{"url":"https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A14252","source":"cve@mitre.org"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2011-11/msg00020.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.opensuse.org/opensuse-updates/2011-10/msg00002.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://secunia.com/advisories/46315","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.debian.org/security/2011/dsa-2312","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.debian.org/security/2011/dsa-2313","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.debian.org/security/2011/dsa-2317","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.mandriva.com/security/advisories?name=MDVSA-2011:139","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.mandriva.com/security/advisories?name=MDVSA-2011:140","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.mandriva.com/security/advisories?name=MDVSA-2011:141","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.mozilla.org/security/announce/2011/mfsa2011-38.html","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.redhat.com/support/errata/RHSA-2011-1341.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=665548","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A14252","source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2011-2999","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."}