{"id":"CVE-2004-0765","aliases":["EUVD-2004-0763","GHSA-h29q-7v28-gprh"],"status":"published","title":"The cert_TestHostName function in Mozilla before 1.7, Firefox before 0.9, and Thunderbird before...","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.","severity":{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.01035,"percentile":0.64107,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2004-08-03T04:00:00Z","modified":"2026-06-16T22:06:19Z","products":[{"vendor":"mozilla","product":"firefox"},{"vendor":"mozilla","product":"mozilla"},{"vendor":"mozilla","product":"thunderbird"}],"references":[{"url":"http://bugzilla.mozilla.org/show_bug.cgi?id=234058","tags":["x_refsource_CONFIRM","x_transferred","Patch","Vendor Advisory"]},{"url":"https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11162","tags":["vdb-entry","signature","x_refsource_OVAL","x_transferred"]},{"url":"http://www.novell.com/linux/security/advisories/2004_36_mozilla.html","tags":["vendor-advisory","x_refsource_SUSE","x_transferred","Vendor Advisory"]},{"url":"http://www.redhat.com/support/errata/RHSA-2004-421.html","tags":["vendor-advisory","x_refsource_REDHAT","x_transferred","Patch","Vendor Advisory"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/16868","tags":["vdb-entry","x_refsource_XF","x_transferred"]},{"url":"http://www.mozilla.org/projects/security/known-vulnerabilities.html#mozilla1.7","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"http://marc.info/?l=bugtraq\u0026m=109900315219363\u0026w=2","tags":["vendor-advisory","x_refsource_FEDORA","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2004-0765"},{"url":"https://github.com/advisories/GHSA-h29q-7v28-gprh"}],"sources":{"cve":[{"id":"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.","status":"published","published":"2004-08-03T04:00:00Z","modified":"2024-08-08T00:31:46.881Z","updated_at":"2026-11-02T14:34:55.098814Z"}],"euvd":[{"id":"EUVD-2004-0763","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.","status":"published","published":"2004-08-03T04:00:00Z","modified":"2024-08-08T00:31:46Z","updated_at":"2026-11-03T01:15:17.778038Z"}],"ghsa":[{"id":"GHSA-h29q-7v28-gprh","title":"The cert_TestHostName function in Mozilla before 1.7, Firefox before 0.9, and Thunderbird before...","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.","status":"published","published":"2022-04-29T02:58:19Z","modified":"2023-01-30T05:02:51Z","updated_at":"2026-11-02T14:46:43.616467Z"}],"nvd":[{"id":"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.","status":"published","published":"2004-08-18T04:00:00Z","modified":"2026-06-16T22:06:19.87Z","cvss":[{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"updated_at":"2026-11-02T14:00:51.000028Z"}]}}