Back
CVE-2013-0776
Mozilla Firefox before 19.0, Firefox ESR 17.x before 17.0.3, Thunderbird before 17.0.3, Thunderbird ESR 17.x before 17.0.3, and SeaMonkey…
Medium4.0EPSS 1.3%
- Published
- Updated
- Reserved
- Assigned by
- mozilla
Description
Mozilla Firefox before 19.0, Firefox ESR 17.x before 17.0.3, Thunderbird before 17.0.3, Thunderbird ESR 17.x before 17.0.3, and SeaMonkey before 2.16 allow man-in-the-middle attackers to spoof the address bar by operating a proxy server that provides a 407 HTTP status code accompanied by web script, as demonstrated by a phishing attack on an HTTPS site.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Medium4.0 | AV:N/AC:H/Au:N/C:P/I:P/A:N |
- EPSS (exploitation in 30 days)
- 1.3% · top 30% of all CVEs (3 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 4.0.
Weakness
Affected products
n/a
- affected n/a
References (11)
- DSA-2699 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- USN-1729-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- USN-1729-2 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- http://www.mozilla.org/security/announce/2013/mfsa2013-27.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- USN-1748-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- https://bugzilla.mozilla.org/show_bug.cgi?id=796475 (opens in a new tab)x_refsource_CONFIRMx_transferred
- openSUSE-SU-2013:0324 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- RHSA-2013:0271 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2013:0272 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- oval:org.mitre.oval:def:16666 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
- openSUSE-SU-2013:0323 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2013-0776)Record last updated .