HIGH
security flaw
Published Aug 3, 2004
7.5
HIGHCVSS 2.0
EPSS 1.03%
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.
Affected products
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
7.5 HIGH NVD
AV:N/AC:L/Au:N/C:P/I:P/A:P
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact Partial
Integrity Impact Partial
Availability Impact Partial
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
1.03% 0.01035
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.01035
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (11 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.03% (0.01035) | 62.58th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.03% (0.01035) | 59.26th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.77% (0.00766) | 71.74th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.39% (0.00385) | 73.95th | v3 (v2023.03.01) |
| Feb 9, 2024 | 0.39% (0.00385) | 72.37th | v3 (v2023.03.01) |
| Jul 11, 2023 | 0.78% (0.00783) | 79.06th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.86% (0.00864) | 79.80th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.32% (0.01319) | 71.27th | v2 (v2022.01.01) |
| Feb 23, 2023 | 1.32% (0.01319) | 71.23th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.32% (0.01319) | 69.22th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.32% (0.01319) | 44.98th | v2 (v2022.01.01) |
Weaknesses (0)
No CWE recorded.
References (11)
- http://bugzilla.mozilla.org/show_bug.cgi?id=234058 x_refsource_CONFIRMPatchVendor Advisory
- http://marc.info/?l=bugtraq&m=109900315219363&w=2 vendor-advisoryx_refsource_FEDORA
- http://www.mozilla.org/projects/security/known-vulnerabilities.html#mozilla1.7 x_refsource_CONFIRM
- http://www.novell.com/linux/security/advisories/2004_36_mozilla.html vendor-advisoryx_refsource_SUSEVendor Advisory
- http://www.redhat.com/support/errata/RHSA-2004-421.html vendor-advisoryx_refsource_REDHATPatchVendor Advisory
- https://access.redhat.com/security/cve/CVE-2004-0765 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1617278 Issue Tracking
- https://exchange.xforce.ibmcloud.com/vulnerabilities/16868 vdb-entryx_refsource_XF
- https://nvd.nist.gov/vuln/detail/CVE-2004-0765
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11162 vdb-entrysignaturex_refsource_OVAL
- https://www.cve.org/CVERecord?id=CVE-2004-0765
| Link | Providers | Tags |
|---|---|---|
| http://bugzilla.mozilla.org/show_bug.cgi?id=234058 | x_refsource_CONFIRMPatchVendor Advisory | |
| http://marc.info/?l=bugtraq&m=109900315219363&w=2 | vendor-advisoryx_refsource_FEDORA | |
| http://www.mozilla.org/projects/security/known-vulnerabilities.html#mozilla1.7 | x_refsource_CONFIRM | |
| http://www.novell.com/linux/security/advisories/2004_36_mozilla.html | vendor-advisoryx_refsource_SUSEVendor Advisory | |
| http://www.redhat.com/support/errata/RHSA-2004-421.html | vendor-advisoryx_refsource_REDHATPatchVendor Advisory | |
| https://access.redhat.com/security/cve/CVE-2004-0765 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1617278 | Issue Tracking | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/16868 | vdb-entryx_refsource_XF | |
| https://nvd.nist.gov/vuln/detail/CVE-2004-0765 | ||
| https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11162 | vdb-entrysignaturex_refsource_OVAL | |
| https://www.cve.org/CVERecord?id=CVE-2004-0765 |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Aug 3, 2004
Updated Aug 8, 2024
Reserved Aug 2, 2004
Link CVE-2004-0765
CISA Vulnrichment
Updated n/a