{"id":"CVE-2011-2371","url":"https://www.cyber-defence.io/tools/cve/CVE-2011-2371","generatedAt":"2026-10-27T18:46:40.539Z","title":"Integer overflow in the Array.reduceRight method in Mozilla Firefox before 3.6.18 and 4.x through 4.0.1, Thunderbird before 3.1.11, and SeaMonkey through 2.0.14 allows remote attackers to execute arbitrary code via vectors involving a long JavaScript…","description":"Integer overflow in the Array.reduceRight method in Mozilla Firefox before 3.6.18 and 4.x through 4.0.1, Thunderbird before 3.1.11, and SeaMonkey through 2.0.14 allows remote attackers to execute arbitrary code via vectors involving a long JavaScript Array object.","published":"2011-06-30T16:55:05.000Z","lastModified":"2026-06-16T23:31:12.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"2.0","score":10,"severity":"HIGH","vector":"AV:N/AC:L/Au:N/C:C/I:C/A:C"},"cwe":["CWE-189"],"affected":["mozilla/seamonkey","mozilla/firefox","mozilla/thunderbird"],"epss":{"score":0.75691,"percentile":0.99518,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":3,"verified":true,"firstPublished":"2011-10-12","source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[{"edbId":18531,"kind":"exploit","title":"Mozilla Firefox 4.0.1 - 'Array.reduceRight()' Remote Overflow","url":"https://www.exploit-db.com/exploits/18531","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/windows/remote/18531.html","file":"exploits/windows/remote/18531.html","published":"2012-02-27","added":"2012-02-27","updated":"2017-11-22","author":"pa_kt","type":"remote","platform":"windows","port":null,"verified":false,"codes":["CVE-2011-2371","OSVDB-73184"],"tags":null,"aliases":null,"applicationUrl":"http://www.exploit-db.comFirefox_Setup_4.0.1.exe","screenshotUrl":null,"referenceUrl":null},{"edbId":17976,"kind":"exploit","title":"Mozilla Firefox - 'Array.reduceRight()' Integer Overflow (Metasploit) (2)","url":"https://www.exploit-db.com/exploits/17976","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/windows/remote/17976.rb","file":"exploits/windows/remote/17976.rb","published":"2011-10-13","added":"2011-10-13","updated":"2017-10-13","author":"Metasploit","type":"remote","platform":"windows","port":null,"verified":true,"codes":["CVE-2011-2371","OSVDB-73184"],"tags":"Metasploit Framework (MSF)","aliases":null,"applicationUrl":"http://www.exploit-db.comFirefox_Setup_3.6.16.exe","screenshotUrl":null,"referenceUrl":null},{"edbId":17974,"kind":"exploit","title":"Mozilla Firefox - 'Array.reduceRight()' Integer Overflow (1)","url":"https://www.exploit-db.com/exploits/17974","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/windows/remote/17974.html","file":"exploits/windows/remote/17974.html","published":"2011-10-12","added":"2011-10-12","updated":"2017-10-12","author":"ryujin","type":"remote","platform":"windows","port":null,"verified":true,"codes":["CVE-2011-2371","OSVDB-73184"],"tags":null,"aliases":null,"applicationUrl":"http://www.exploit-db.comFirefox_Setup_3.6.16.exe","screenshotUrl":"http://www.exploit-db.com/screenshots/idlt18000/windows-7.png","referenceUrl":null}]},"verdict":{"level":"urgent","text":"EPSS puts the probability of exploitation in the next 30 days at 75.7%, higher than 100% of all known CVEs. Patch or mitigate before the next change window."},"changes":[],"references":[{"url":"http://lists.opensuse.org/opensuse-security-announce/2011-07/msg00001.html","source":"cve@mitre.org"},{"url":"http://secunia.com/advisories/45002","source":"cve@mitre.org"},{"url":"http://securityreason.com/securityalert/8472","source":"cve@mitre.org"},{"url":"http://support.avaya.com/css/P8/documents/100144854","source":"cve@mitre.org"},{"url":"http://support.avaya.com/css/P8/documents/100145333","source":"cve@mitre.org"},{"url":"http://www.debian.org/security/2011/dsa-2268","source":"cve@mitre.org"},{"url":"http://www.debian.org/security/2011/dsa-2269","source":"cve@mitre.org"},{"url":"http://www.debian.org/security/2011/dsa-2273","source":"cve@mitre.org"},{"url":"http://www.mandriva.com/security/advisories?name=MDVSA-2011:111","source":"cve@mitre.org"},{"url":"http://www.mozilla.org/security/announce/2011/mfsa2011-22.html","tags":["Vendor Advisory"],"source":"cve@mitre.org"},{"url":"http://www.redhat.com/support/errata/RHSA-2011-0885.html","source":"cve@mitre.org"},{"url":"http://www.redhat.com/support/errata/RHSA-2011-0887.html","source":"cve@mitre.org"},{"url":"http://www.redhat.com/support/errata/RHSA-2011-0888.html","source":"cve@mitre.org"},{"url":"http://www.ubuntu.com/usn/USN-1149-1","source":"cve@mitre.org"},{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=664009","source":"cve@mitre.org"},{"url":"https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A13987","source":"cve@mitre.org"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2011-07/msg00001.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://secunia.com/advisories/45002","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://securityreason.com/securityalert/8472","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://support.avaya.com/css/P8/documents/100144854","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://support.avaya.com/css/P8/documents/100145333","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.debian.org/security/2011/dsa-2268","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.debian.org/security/2011/dsa-2269","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.debian.org/security/2011/dsa-2273","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.mandriva.com/security/advisories?name=MDVSA-2011:111","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.mozilla.org/security/announce/2011/mfsa2011-22.html","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.redhat.com/support/errata/RHSA-2011-0885.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.redhat.com/support/errata/RHSA-2011-0887.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.redhat.com/support/errata/RHSA-2011-0888.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.ubuntu.com/usn/USN-1149-1","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=664009","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A13987","source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2011-2371","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."}