CVE-2009-0652
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.
Key facts
- CVSS score
- 5.8 (v2.0)
- Severity
- MEDIUM
- CVSS vector
AV:N/AC:M/Au:N/C:N/I:P/A:P- EPSS score
- 1.5% (74th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2009-0655)
- Published
- February 20, 2009
- NVD last modified
- June 16, 2026
- Status
- Modified
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2009-0655 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.
View on the EU Vulnerability DatabaseAffected products
- mozilla / firefox
- mozilla / firefox
- mozilla / firefox
- mozilla / firefox
- mozilla / firefox
- mozilla / firefox
- mozilla / firefox
- mozilla / firefox
- mozilla / firefox
- mozilla / firefox
- mozilla / firefox
- mozilla / firefox
- mozilla / firefox
- mozilla / firefox
- mozilla / firefox
- mozilla / firefox
- mozilla / firefox
- mozilla / firefox
- mozilla / firefox
- mozilla / firefox
- mozilla / firefox
- mozilla / firefox
- mozilla / firefox
- mozilla / firefox
- mozilla / firefox
- mozilla / firefox
- mozilla / firefox
- mozilla / firefox
- mozilla / firefox
- mozilla / firefox
- mozilla / firefox
- mozilla / firefox
- mozilla / firefox
- mozilla / firefox
- mozilla / firefox
- mozilla / firefox
- mozilla / firefox
- mozilla / firefox
- mozilla / firefox
- mozilla / firefox
- mozilla / firefox
- mozilla / firefox
- mozilla / firefox
- mozilla / firefox
- mozilla / firefox
- mozilla / firefox
- mozilla / firefox
- mozilla / firefox
- mozilla / firefox
- mozilla / firefox
and 38 more…
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(Vendor Advisory)
- http://secunia.com/advisories/34843(Vendor Advisory)
- http://secunia.com/advisories/34844(Vendor Advisory)
- http://secunia.com/advisories/34894(Vendor Advisory)
- http://secunia.com/advisories/35042(Vendor Advisory)
- http://secunia.com/advisories/35065(Vendor Advisory)
- http://www.blackhat.com/html/bh-dc-09/bh-dc-09-speakers.html#Marlinspike
- http://www.debian.org/security/2009/dsa-1797
- http://www.debian.org/security/2009/dsa-1830
- http://www.mandriva.com/security/advisories?name=MDVSA-2009:111
- http://www.mozilla.org/security/announce/2009/mfsa2009-15.html
- http://www.redhat.com/support/errata/RHSA-2009-0436.html
- http://www.securityfocus.com/bid/33837
- http://www.vupen.com/english/advisories/2009/1125(Vendor Advisory)
- https://exchange.xforce.ibmcloud.com/vulnerabilities/48974
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11396
- https://usn.ubuntu.com/764-1/
- https://www.blackhat.com/presentations/bh-dc-09/Marlinspike/BlackHat-DC-09-Marlinspike-Defeating-SSL.pdf
- https://www.redhat.com/archives/fedora-package-announce/2009-April/msg00683.html
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
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