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CVE-2012-3962
Mozilla Firefox before 15.0, Firefox ESR 10.x before 10.0.7, Thunderbird before 15.0, Thunderbird ESR 10.x before 10.0.7, and SeaMonkey…
High9.3EPSS 4.7%
- Published
- Updated
- Reserved
- Assigned by
- mitre
Description
Mozilla Firefox before 15.0, Firefox ESR 10.x before 10.0.7, Thunderbird before 15.0, Thunderbird ESR 10.x before 10.0.7, and SeaMonkey before 2.12 do not properly iterate through the characters in a text run, which allows remote attackers to execute arbitrary code via a crafted document.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | High9.3 | AV:N/AC:M/Au:N/C:C/I:C/A:C |
- EPSS (exploitation in 30 days)
- 4.7% · top 8.1% 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: High 9.3.
Weakness
- n/a
Affected products
n/a
- affected n/a
References (14)
- DSA-2556 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- RHSA-2012:1211 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- http://www.mozilla.org/security/announce/2012/mfsa2012-58.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- DSA-2553 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- oval:org.mitre.oval:def:16494 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
- https://bugzilla.mozilla.org/show_bug.cgi?id=769120 (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
- DSA-2554 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_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
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-2012-3962)Record last updated .