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CVE-2005-0236
The International Domain Name (IDN) support in Omniweb 5 allows remote attackers to spoof domain names using punycode encoded domain names…
- 5.0MediumCVSS base score
- 1.0%Exploitation in 30 daysEPSS · top 37% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
The International Domain Name (IDN) support in Omniweb 5 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 | Medium5.0 | AV:N/AC:L/Au:N/C:N/I:P/A:N |
- EPSS (exploitation in 30 days)
- 1.0% · top 37% 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: Medium 5.0.
Affected products
n/a
- affected n/a
References
6
- 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
- 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
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-2005-0237 (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-2005-0236)Record last updated .