VULNERABILITY INTELLIGENCE

CVE-2009-0652

CVSS score5.8 MEDIUM
EPSS probability1.50%
CISA KEVNot currently listed
Published2009-02-20
Last modified2026-06-16
CVSS vectorAV:N/AC:M/Au:N/C:N/I:P/A:P

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.

Primary references