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CVE-2005-0233
The International Domain Name (IDN) support in Firefox 1.0, Camino .8.5, and Mozilla before 1.7.6 allows remote attackers to spoof domain…
- 7.5HighCVSS base score
- 20.4%Exploitation in 30 daysEPSS · top 2.5% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
The International Domain Name (IDN) support in Firefox 1.0, Camino .8.5, and Mozilla before 1.7.6 allows remote attackers to spoof domain names using punycode encoded domain names that are decoded in URLs and SSL certificates in a way that uses homograph characters from other character sets, which facilitates phishing attacks.
Timeline
ID reserved
By redhat
Published
- 20 years later
· 20 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | High7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
- EPSS (exploitation in 30 days)
- 20.4% · top 2.5% of all CVEs (9 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Affected products
n/a
- affected n/a
References
14
- http://www.shmoo.com/idn/homograph.txt (opens in a new tab)x_refsource_MISCx_transferred
- multiple-browsers-idn-spoof(19236) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- 20050206 state of homograph attacks (opens in a new tab)mailing-listx_refsource_FULLDISCx_transferred
- http://www.shmoo.com/idn (opens in a new tab)x_refsource_MISCx_transferred
- SUSE-SA:2005:016 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- oval:org.mitre.oval:def:11229 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
- oval:org.mitre.oval:def:100029 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
- RHSA-2005:176 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2005:384 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- GLSA-200503-30 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
- GLSA-200503-10 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
- 20050208 International Domain Name [IDN] support in modern browsers allows attackers to spoof domain name URLs + SSL certs. (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- 12461 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- http://www.mozilla.org/security/announce/mfsa2005-29.html (opens in a new tab)x_refsource_CONFIRMx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2005-0234 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2005-0233)Record last updated .