Back
CVE-2012-3976
Mozilla Firefox before 15.0, Firefox ESR 10.x before 10.0.7, and SeaMonkey before 2.12 do not properly handle onLocationChange events…
Medium4.3EPSS 1.8%
- Published
- Updated
- Reserved
- Assigned by
- mitre
Description
Mozilla Firefox before 15.0, Firefox ESR 10.x before 10.0.7, and SeaMonkey before 2.12 do not properly handle onLocationChange events during navigation between different https sites, which allows remote attackers to spoof the X.509 certificate information in the address bar via a crafted web page.
Timeline
ID reserved
By mitre
- 49 days later
· 49 days later
Published
- 12 years later
· 12 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Medium4.3 | AV:N/AC:M/Au:N/C:P/I:N/A:N |
- EPSS (exploitation in 30 days)
- 1.8% · top 22% of all CVEs (8 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 4.3.
Weakness
Affected products
n/a
- affected n/a
References (11)
- http://www.mozilla.org/security/announce/2012/mfsa2012-69.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://bugzilla.mozilla.org/show_bug.cgi?id=768568 (opens in a new tab)x_refsource_CONFIRMx_transferred
- USN-1548-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- USN-1548-2 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- RHSA-2012:1210 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- SUSE-SU-2012:1167 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- 55313 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- SUSE-SU-2012:1157 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- openSUSE-SU-2012:1065 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- http://www.xerox.com/download/security/security-bulletin/16287-4d6b7b0c81f7b/cert_XRX13-003_v1.0.pdf (opens in a new tab)x_refsource_CONFIRMx_transferred
- oval:org.mitre.oval:def:16060 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_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://cveledger.app/cve/CVE-2012-3976)Record last updated .