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 during navigation between different https sites, which allows remote attackers to spoof the X.509 certificate…
Does this matter?
Lower severity and a low EPSS score (1.78%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 2.0
- 4.3 MEDIUMAV:N/AC:M/Au:N/C:P/I:N/A:N
- EPSS
- 1.78% probability · 78th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-200
- Affected
- mozilla/firefox · mozilla/seamonkey · opensuse/opensuse · suse/linux enterprise desktop · suse/linux enterprise server · suse/linux enterprise software development kit · redhat/enterprise linux desktop · redhat/enterprise linux eus · redhat/enterprise linux server · redhat/enterprise linux server eus · redhat/enterprise linux workstation · canonical/ubuntu linux
- Source
- cve@mitre.org
EPSS 1.8% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://lists.opensuse.org/opensuse-security-announce/2012-08/msg00028.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00011.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00014.htmlMailing List, Third Party Advisory
- http://rhn.redhat.com/errata/RHSA-2012-1210.htmlThird Party Advisory
- http://www.mozilla.org/security/announce/2012/mfsa2012-69.htmlVendor Advisory
- http://www.securityfocus.com/bid/55313Third Party Advisory, VDB Entry
- http://www.ubuntu.com/usn/USN-1548-1Third Party Advisory
- http://www.ubuntu.com/usn/USN-1548-2Third Party Advisory
- http://www.xerox.com/download/security/security-bulletin/16287-4d6b7b0c81f7b/cert_XRX13-003_v1.0.pdfThird Party Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=768568Issue Tracking, Vendor Advisory
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16060Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2012-08/msg00028.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00011.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00014.htmlMailing List, Third Party Advisory
- http://rhn.redhat.com/errata/RHSA-2012-1210.htmlThird Party Advisory
- http://www.mozilla.org/security/announce/2012/mfsa2012-69.htmlVendor Advisory
- http://www.securityfocus.com/bid/55313Third Party Advisory, VDB Entry
- http://www.ubuntu.com/usn/USN-1548-1Third Party Advisory
- http://www.ubuntu.com/usn/USN-1548-2Third Party Advisory
- http://www.xerox.com/download/security/security-bulletin/16287-4d6b7b0c81f7b/cert_XRX13-003_v1.0.pdfThird Party Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=768568Issue Tracking, Vendor Advisory
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16060Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.