Unrated severityNVD Advisory· Published Aug 18, 2004· Updated Jun 16, 2026
CVE-2004-0765
CVE-2004-0765
Description
The cert_TestHostName function in Mozilla before 1.7, Firefox before 0.9, and Thunderbird before 0.7, only checks the hostname portion of a certificate when the hostname portion of the URI is not a fully qualified domain name (FQDN), which allows remote attackers to spoof trusted certificates.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
6cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*range: <=0.9
- (no CPE)range: <0.9
cpe:2.3:a:mozilla:mozilla:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:mozilla:mozilla:*:*:*:*:*:*:*:*range: <=1.7
- (no CPE)range: <1.7
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*range: <=0.7
- (no CPE)range: <0.7
Patches
Vulnerability mechanics
References
7- bugzilla.mozilla.org/show_bug.cginvdPatchVendor Advisory
- www.redhat.com/support/errata/RHSA-2004-421.htmlnvdPatchVendor Advisory
- www.novell.com/linux/security/advisories/2004_36_mozilla.htmlnvdVendor Advisory
- marc.infonvd
- www.mozilla.org/projects/security/known-vulnerabilities.htmlnvd
- exchange.xforce.ibmcloud.com/vulnerabilities/16868nvd
- oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11162nvd
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