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CVE-2011-2378
The appendChild function in Mozilla Firefox before 3.6.20, Thunderbird 3.x before 3.1.12, SeaMonkey 2.x, and possibly other products does…
High10.0EPSS 5.6%
- Published
- Updated
- Reserved
- Assigned by
- mitre
Description
The appendChild function in Mozilla Firefox before 3.6.20, Thunderbird 3.x before 3.1.12, SeaMonkey 2.x, and possibly other products does not properly handle DOM objects, which allows remote attackers to execute arbitrary code via unspecified vectors that lead to dereferencing of a "dangling pointer."
Timeline
ID reserved
By mitre
- 3 months later
· 3 months later
Published
- 13 years later
· 13 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 | High10.0 | AV:N/AC:L/Au:N/C:C/I:C/A:C |
- EPSS (exploitation in 30 days)
- 5.6% · top 7.0% 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: High 10.0.
Weakness
Affected products
n/a
- affected n/a
References (11)
- MDVSA-2011:127 (opens in a new tab)vendor-advisoryx_refsource_MANDRIVAx_transferred
- http://www.mozilla.org/security/announce/2011/mfsa2011-30.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://bugzilla.mozilla.org/show_bug.cgi?id=648065 (opens in a new tab)x_refsource_CONFIRMx_transferred
- DSA-2297 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- SUSE-SU-2011:0967 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- DSA-2296 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- RHSA-2011:1166 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- SUSE-SA:2011:037 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- RHSA-2011:1164 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- DSA-2295 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- oval:org.mitre.oval:def:14163 (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-2011-2378)Record last updated .