CVE-2005-0233

Exp

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.

Published: 2005-02-08 Last update: 2026-04-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2005-0233 is rated High Exploit Risk (84/100): CVSS High severity, with high exploitation likelihood (EPSS 20.40%, 97th percentile). 7 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +11.81% over the last day, indicating growing attacker interest. Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2005-0233

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2005-0233

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 8.58% 20.40% +11.81%
2 2025-03-30 3.88% 8.58% +4.71%
3 2025-03-29 — 3.88% —

Full EPSS history (10 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2005-0233

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 2.0 HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 6.4 [email protected]

Weakness enumeration for CVE-2005-0233

OS Trackers for CVE-2005-0233

vendor priority summary link
redhat high — https://access.redhat.com/security/cve/CVE-2005-0233
ubuntu medium CVE-2005-0233 medium priority: Ubuntu including 1 source packages (mozilla), 4 status rows across 4 suites (dapper, edgy, feisty, upstream): released 2, DNE 1, needs-triage 1. https://ubuntu.com/security/CVE-2005-0233

Affected software / configurations for CVE-2005-0233

Vendor Product Version Raw CPE
mozilla camino 0.8.5 cpe:2.3:a:mozilla:camino:0.8.5:*:*:*:*:*:*:*
mozilla firefox 1.0 cpe:2.3:a:mozilla:firefox:1.0:*:*:*:*:*:*:*
mozilla mozilla < 1.7.6 cpe:2.3:a:mozilla:mozilla:*:*:*:*:*:*:*:*
omnigroup omniweb 5 cpe:2.3:a:omnigroup:omniweb:5:*:*:*:*:*:*:*
opera opera_browser <= 7.54 cpe:2.3:a:opera:opera_browser:*:*:*:*:*:*:*:*
opera_software opera_web_browser 7.54 cpe:2.3:a:opera_software:opera_web_browser:7.54:*:*:*:*:*:*:*

References for CVE-2005-0233

URL Tags
http://lists.grok.org.uk/pipermail/full-disclosure/2005-February/031459.html Broken Link Exploit Vendor Advisory
http://marc.info/?l=bugtraq&m=110782704923280&w=2 Mailing List
http://www.gentoo.org/security/en/glsa/glsa-200503-10.xml Exploit Patch Third Party Advisory Vendor Advisory
http://www.gentoo.org/security/en/glsa/glsa-200503-30.xml Exploit Patch Third Party Advisory Vendor Advisory
http://www.mozilla.org/security/announce/mfsa2005-29.html Exploit Patch Third Party Advisory Vendor Advisory
http://www.novell.com/linux/security/advisories/2005_16_mozilla_firefox.html Broken Link Exploit Patch Vendor Advisory
http://www.redhat.com/support/errata/RHSA-2005-176.html Broken Link
http://www.redhat.com/support/errata/RHSA-2005-384.html Broken Link
http://www.securityfocus.com/bid/12461 Broken Link Third Party Advisory VDB Entry
http://www.shmoo.com/idn Broken Link Exploit Vendor Advisory
http://www.shmoo.com/idn/homograph.txt Broken Link Exploit Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/19236 Third Party Advisory VDB Entry
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A100029 Tool Signature
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11229 Tool Signature
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