{"id":"CVE-2009-0652","url":"https://www.cyber-defence.io/tools/cve/CVE-2009-0652","generatedAt":"2026-10-27T18:32:49.305Z","title":"The Internationalized Domain Names (IDN) blacklist in Mozilla Firefox 3.0.6 and other versions before 3.0.9; Thunderbird before 2.0.0.21; and SeaMonkey before 1.1.15 does not include box-drawing characters, which allows remote attackers to spoof URLs…","description":"The Internationalized Domain Names (IDN) blacklist in Mozilla Firefox 3.0.6 and other versions before 3.0.9; Thunderbird before 2.0.0.21; and SeaMonkey before 1.1.15 does not include box-drawing characters, which allows remote attackers to spoof URLs and conduct phishing attacks, as demonstrated by homoglyphs of the / (slash) and ? (question mark) characters in a subdomain of a .cn domain name, a different vulnerability than CVE-2005-0233.  NOTE: some third parties claim that 3.0.6 is not affected, but much older versions perhaps are affected.","published":"2009-02-20T19:30:00.000Z","lastModified":"2026-06-16T23:05:30.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"2.0","score":5.8,"severity":"MEDIUM","vector":"AV:N/AC:M/Au:N/C:N/I:P/A:P"},"cwe":[],"affected":["mozilla/firefox","mozilla/seamonkey","mozilla/thunderbird"],"epss":{"score":0.01497,"percentile":0.74039,"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 (1.50%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"http://lists.immunitysec.com/pipermail/dailydave/2009-February/005556.html","source":"cve@mitre.org"},{"url":"http://lists.immunitysec.com/pipermail/dailydave/2009-February/005563.html","source":"cve@mitre.org"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2009-05/msg00000.html","source":"cve@mitre.org"},{"url":"http://rhn.redhat.com/errata/RHSA-2009-0437.html","source":"cve@mitre.org"},{"url":"http://secunia.com/advisories/34096","tags":["Vendor Advisory"],"source":"cve@mitre.org"},{"url":"http://secunia.com/advisories/34843","tags":["Vendor Advisory"],"source":"cve@mitre.org"},{"url":"http://secunia.com/advisories/34844","tags":["Vendor Advisory"],"source":"cve@mitre.org"},{"url":"http://secunia.com/advisories/34894","tags":["Vendor Advisory"],"source":"cve@mitre.org"},{"url":"http://secunia.com/advisories/35042","tags":["Vendor Advisory"],"source":"cve@mitre.org"},{"url":"http://secunia.com/advisories/35065","tags":["Vendor Advisory"],"source":"cve@mitre.org"},{"url":"http://www.blackhat.com/html/bh-dc-09/bh-dc-09-speakers.html#Marlinspike","source":"cve@mitre.org"},{"url":"http://www.debian.org/security/2009/dsa-1797","source":"cve@mitre.org"},{"url":"http://www.debian.org/security/2009/dsa-1830","source":"cve@mitre.org"},{"url":"http://www.mandriva.com/security/advisories?name=MDVSA-2009:111","source":"cve@mitre.org"},{"url":"http://www.mozilla.org/security/announce/2009/mfsa2009-15.html","source":"cve@mitre.org"},{"url":"http://www.redhat.com/support/errata/RHSA-2009-0436.html","source":"cve@mitre.org"},{"url":"http://www.securityfocus.com/bid/33837","source":"cve@mitre.org"},{"url":"http://www.vupen.com/english/advisories/2009/1125","tags":["Vendor Advisory"],"source":"cve@mitre.org"},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/48974","source":"cve@mitre.org"},{"url":"https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11396","source":"cve@mitre.org"},{"url":"https://usn.ubuntu.com/764-1/","source":"cve@mitre.org"},{"url":"https://www.blackhat.com/presentations/bh-dc-09/Marlinspike/BlackHat-DC-09-Marlinspike-Defeating-SSL.pdf","source":"cve@mitre.org"},{"url":"https://www.redhat.com/archives/fedora-package-announce/2009-April/msg00683.html","source":"cve@mitre.org"},{"url":"http://lists.immunitysec.com/pipermail/dailydave/2009-February/005556.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.immunitysec.com/pipermail/dailydave/2009-February/005563.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2009-05/msg00000.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://rhn.redhat.com/errata/RHSA-2009-0437.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://secunia.com/advisories/34096","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://secunia.com/advisories/34843","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://secunia.com/advisories/34844","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://secunia.com/advisories/34894","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://secunia.com/advisories/35042","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://secunia.com/advisories/35065","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.blackhat.com/html/bh-dc-09/bh-dc-09-speakers.html#Marlinspike","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.mozilla.org/security/announce/2009/mfsa2009-15.html","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/33837","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.vupen.com/english/advisories/2009/1125","tags":["Vendor 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publish the results; upstream data remains subject to its own terms."}