CVE-2005-0233
Status: ModifiedHigh (7.5)—
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.
CVSS
- Version: 2.0
- Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P
- Base score: 7.5
Exploitation probability (EPSS)
- Probability of exploitation in the next 30 days: 20%
- Percentile among all scored CVEs: 97
- Score date: 10/2/2026
EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).
Affected technologies (6)
CWEs
- NVD-CWE-noinfo
References
- http://lists.grok.org.uk/pipermail/full-disclosure/2005-February/031459.html
- http://marc.info/?l=bugtraq&m=110782704923280&w=2
- http://www.gentoo.org/security/en/glsa/glsa-200503-10.xml
- http://www.gentoo.org/security/en/glsa/glsa-200503-30.xml
- http://www.mozilla.org/security/announce/mfsa2005-29.html
- http://www.novell.com/linux/security/advisories/2005_16_mozilla_firefox.html
- http://www.redhat.com/support/errata/RHSA-2005-176.html
- http://www.redhat.com/support/errata/RHSA-2005-384.html
- http://www.securityfocus.com/bid/12461
- http://www.shmoo.com/idn
- http://www.shmoo.com/idn/homograph.txt
- https://exchange.xforce.ibmcloud.com/vulnerabilities/19236
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A100029
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11229
- http://lists.grok.org.uk/pipermail/full-disclosure/2005-February/031459.html
- http://marc.info/?l=bugtraq&m=110782704923280&w=2
- http://www.gentoo.org/security/en/glsa/glsa-200503-10.xml
- http://www.gentoo.org/security/en/glsa/glsa-200503-30.xml
- http://www.mozilla.org/security/announce/mfsa2005-29.html
- http://www.novell.com/linux/security/advisories/2005_16_mozilla_firefox.html
- http://www.redhat.com/support/errata/RHSA-2005-176.html
- http://www.redhat.com/support/errata/RHSA-2005-384.html
- http://www.securityfocus.com/bid/12461
- http://www.shmoo.com/idn
- http://www.shmoo.com/idn/homograph.txt
- https://exchange.xforce.ibmcloud.com/vulnerabilities/19236
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A100029
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11229
Raw JSON (NVD)
Show
{
"id": "CVE-2005-0233",
"cveTags": [],
"metrics": {
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"accessVector": "NETWORK",
"vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
"authentication": "NONE",
"integrityImpact": "PARTIAL",
"accessComplexity": "LOW",
"availabilityImpact": "PARTIAL",
"confidentialityImpact": "PARTIAL"
},
"acInsufInfo": false,
"impactScore": 6.4,
"baseSeverity": "HIGH",
"obtainAllPrivilege": false,
"exploitabilityScore": 10,
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"userInteractionRequired": false
}
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"affected": [
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"published": "2005-02-08T05:00:00.000",
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"vulnStatus": "Modified",
"weaknesses": [
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"source": "nvd@nist.gov",
"description": [
{
"lang": "en",
"value": "NVD-CWE-noinfo"
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"descriptions": [
{
"lang": "en",
"value": "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."
}
],
"lastModified": "2026-06-16T22:10:44.813",
"configurations": [
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"nodes": [
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