{"cve":"CVE-2009-0652","nvd":{"published":"2009-02-20T19:30:00.250","modified":"2026-06-16T23:05:30.003","status":"Modified","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.","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["http://lists.immunitysec.com/pipermail/dailydave/2009-February/005556.html","http://lists.immunitysec.com/pipermail/dailydave/2009-February/005563.html","http://lists.opensuse.org/opensuse-security-announce/2009-05/msg00000.html","http://rhn.redhat.com/errata/RHSA-2009-0437.html","http://secunia.com/advisories/34096"],"products":["mozilla:firefox","mozilla:seamonkey","mozilla:thunderbird"],"source":"nvd","synced_at":"2026-10-19T19:53:23.791937413+00:00"},"epss":{"cve":"CVE-2009-0652","score":0.01497,"percentile":0.74223,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}