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Vulnerability record · CVE-2010-2766 · published 9 September 2010

CVE-2010-2766: Mozilla firefox code injection vulnerability

Mozilla · Firefox

The normalizeDocument function in Mozilla Firefox before 3.5.12 and 3.6.x before 3.6.9, Thunderbird before 3.0.7 and 3.1.x before 3.1.3, and SeaMonkey before 2.0.7 does not properly handle the removal of DOM nodes during normalization, which might allow remote attackers to execute arbitrary code via vectors involving access to a deleted object.

9.3 CVSS 2.0 High EPSS 5.4% · top 7.6% CWE-94 · Code injection
9.3CVSS 2.0 base score
5.4%EPSS exploitation probability, 30 days
NoNot in CISA KEV
3Affected product versions listed by NVD
28References
16 Jun 2026Last modified by NVD

Description

The normalizeDocument function in Mozilla Firefox before 3.5.12 and 3.6.x before 3.6.9, Thunderbird before 3.0.7 and 3.1.x before 3.1.3, and SeaMonkey before 2.0.7 does not properly handle the removal of DOM nodes during normalization, which might allow remote attackers to execute arbitrary code via vectors involving access to a deleted object.

AV:N/AC:M/Au:N/C:C/I:C/A:C

Affected products

3 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://blogs.sun.com/security/entry/multiple_vulnerabilities_in_mozilla_firefox
http://lists.fedoraproject.org/pipermail/package-announce/2010-September/047282.html
http://lists.opensuse.org/opensuse-security-announce/2010-10/msg00002.html
http://secunia.com/advisories/42867
http://support.avaya.com/css/P8/documents/100112690
http://www.debian.org/security/2010/dsa-2106
http://www.mandriva.com/security/advisories?name=MDVSA-2010:173
http://www.mozilla.org/security/announce/2010/mfsa2010-57.html Vendor Advisory
http://www.securityfocus.com/bid/43100
http://www.vupen.com/english/advisories/2010/2323
http://www.vupen.com/english/advisories/2011/0061
http://www.zerodayinitiative.com/advisories/ZDI-10-176/
https://bugzilla.mozilla.org/show_bug.cgi?id=580445
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11778
http://blogs.sun.com/security/entry/multiple_vulnerabilities_in_mozilla_firefox
http://lists.fedoraproject.org/pipermail/package-announce/2010-September/047282.html
http://lists.opensuse.org/opensuse-security-announce/2010-10/msg00002.html
http://secunia.com/advisories/42867
http://support.avaya.com/css/P8/documents/100112690
http://www.debian.org/security/2010/dsa-2106
http://www.mandriva.com/security/advisories?name=MDVSA-2010:173
http://www.mozilla.org/security/announce/2010/mfsa2010-57.html Vendor Advisory
http://www.securityfocus.com/bid/43100
http://www.vupen.com/english/advisories/2010/2323
http://www.vupen.com/english/advisories/2011/0061
http://www.zerodayinitiative.com/advisories/ZDI-10-176/
https://bugzilla.mozilla.org/show_bug.cgi?id=580445
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11778

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2010-2766), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.