Vulnerability Monitor

The vendors, products, and vulnerabilities you care about

CVE-2010-3765

Mozilla Firefox 3.5.x through 3.5.14 and 3.6.x through 3.6.11, Thunderbird 3.1.6 before 3.1.6 and 3.0.x before 3.0.10, and SeaMonkey 2.x before 2.0.10, when JavaScript is enabled, allows remote attackers to execute arbitrary code via vectors related to nsCSSFrameConstructor::ContentAppended, the appendChild method, incorrect index tracking, and the creation of multiple frames, which triggers memory corruption, as exploited in the wild in October 2010 by the Belmoo malware.

Security Impact Summary

This vulnerability carries a CRITICAL severity rating with a CVSS v3.1 score of 9.8, indicating it can be exploited remotely over the network with relatively low complexity without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts confidentiality (data exposure), integrity (unauthorized modifications), and availability (service disruption) for affected systems. Impacting 3 products from mozilla, from mozilla, from mozilla organizations running these solutions should prioritize assessment and patching.

Historical Context

Documented in 2010, this vulnerability occurred amid the cloud computing expansion era, where traditional network perimeter security models were being reevaluated. Organizations were transitioning from isolated infrastructure to interconnected systems, creating new attack surfaces that vulnerabilities like this could exploit.

Published

2010-10-28T00:00:05.237

Last Modified

2025-10-22T01:15:37.920

Status

Deferred

Source

[email protected]

Severity

CVSSv3.1: 9.8 (CRITICAL)

CVSSv2 Vector

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

Access Vector: NETWORK
Access Complexity: MEDIUM
Authentication: NONE
Confidentiality Impact: COMPLETE
Integrity Impact: COMPLETE
Availability Impact: COMPLETE

Exploitability Score

8.6

Impact Score

10.0

Weaknesses

Type: Primary
CWE-119
Type: Secondary
CWE-119

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	mozilla	firefox	3.5	Yes
Application	mozilla	firefox	3.5.1	Yes
Application	mozilla	firefox	3.5.2	Yes
Application	mozilla	firefox	3.5.3	Yes
Application	mozilla	firefox	3.5.4	Yes
Application	mozilla	firefox	3.5.5	Yes
Application	mozilla	firefox	3.5.6	Yes
Application	mozilla	firefox	3.5.7	Yes
Application	mozilla	firefox	3.5.8	Yes
Application	mozilla	firefox	3.5.9	Yes
Application	mozilla	firefox	3.5.10	Yes
Application	mozilla	firefox	3.5.11	Yes
Application	mozilla	firefox	3.5.12	Yes
Application	mozilla	firefox	3.5.13	Yes
Application	mozilla	firefox	3.5.14	Yes
Application	mozilla	firefox	3.6	Yes
Application	mozilla	firefox	3.6.2	Yes
Application	mozilla	firefox	3.6.3	Yes
Application	mozilla	firefox	3.6.4	Yes
Application	mozilla	firefox	3.6.6	Yes
Application	mozilla	firefox	3.6.7	Yes
Application	mozilla	firefox	3.6.8	Yes
Application	mozilla	firefox	3.6.9	Yes
Application	mozilla	firefox	3.6.10	Yes
Application	mozilla	firefox	3.6.11	Yes
Application	mozilla	thunderbird	3.0.1	Yes
Application	mozilla	thunderbird	3.0.2	Yes
Application	mozilla	thunderbird	3.0.3	Yes
Application	mozilla	thunderbird	3.0.4	Yes
Application	mozilla	thunderbird	3.0.5	Yes
Application	mozilla	thunderbird	3.0.6	Yes
Application	mozilla	thunderbird	3.0.7	Yes
Application	mozilla	thunderbird	3.0.8	Yes
Application	mozilla	thunderbird	3.0.9	Yes
Application	mozilla	thunderbird	3.1.1	Yes
Application	mozilla	thunderbird	3.1.2	Yes
Application	mozilla	thunderbird	3.1.3	Yes
Application	mozilla	thunderbird	3.1.4	Yes
Application	mozilla	thunderbird	3.1.5	Yes
Application	mozilla	seamonkey	2.0	Yes
Application	mozilla	seamonkey	2.0	Yes
Application	mozilla	seamonkey	2.0	Yes
Application	mozilla	seamonkey	2.0	Yes
Application	mozilla	seamonkey	2.0	Yes
Application	mozilla	seamonkey	2.0	Yes
Application	mozilla	seamonkey	2.0	Yes
Application	mozilla	seamonkey	2.0	Yes
Application	mozilla	seamonkey	2.0.1	Yes
Application	mozilla	seamonkey	2.0.2	Yes
Application	mozilla	seamonkey	2.0.3	Yes
Application	mozilla	seamonkey	2.0.4	Yes
Application	mozilla	seamonkey	2.0.5	Yes
Application	mozilla	seamonkey	2.0.6	Yes
Application	mozilla	seamonkey	2.0.7	Yes
Application	mozilla	seamonkey	2.0.8	Yes
Application	mozilla	seamonkey	2.0.9	Yes

References

http://blog.mozilla.com/security/2010/10/26/critical-vulnerability-in-firefox-3-5-and-firefox-3-6/ Vendor Advisory ([email protected])
http://blogs.sun.com/security/entry/multiple_vulnerabilities_in_mozilla_firefox ([email protected])
http://isc.sans.edu/diary.html?storyid=9817 ([email protected])
http://lists.fedoraproject.org/pipermail/package-announce/2010-November/050233.html ([email protected])
http://lists.fedoraproject.org/pipermail/package-announce/2010-October/050061.html ([email protected])
http://lists.fedoraproject.org/pipermail/package-announce/2010-October/050077.html ([email protected])
http://lists.fedoraproject.org/pipermail/package-announce/2010-October/050154.html ([email protected])
http://norman.com/about_norman/press_center/news_archive/2010/129223/en?utm_source=twitterfeed&utm_medium=twitter ([email protected])
http://secunia.com/advisories/41761 Vendor Advisory ([email protected])
http://secunia.com/advisories/41965 Vendor Advisory ([email protected])
http://secunia.com/advisories/41966 Vendor Advisory ([email protected])
http://secunia.com/advisories/41969 Vendor Advisory ([email protected])
http://secunia.com/advisories/41975 Vendor Advisory ([email protected])
http://secunia.com/advisories/42003 Vendor Advisory ([email protected])
http://secunia.com/advisories/42008 Vendor Advisory ([email protected])
http://secunia.com/advisories/42043 Vendor Advisory ([email protected])
http://secunia.com/advisories/42867 Vendor Advisory ([email protected])
http://slackware.com/security/viewer.php?l=slackware-security&y=2010&m=slackware-security.556706 ([email protected])
http://support.avaya.com/css/P8/documents/100114329 ([email protected])
http://support.avaya.com/css/P8/documents/100114335 ([email protected])
http://www.debian.org/security/2010/dsa-2124 ([email protected])
http://www.exploit-db.com/exploits/15341 Exploit ([email protected])
http://www.exploit-db.com/exploits/15342 Exploit ([email protected])
http://www.exploit-db.com/exploits/15352 Exploit ([email protected])
http://www.mandriva.com/security/advisories?name=MDVSA-2010:213 ([email protected])
http://www.mandriva.com/security/advisories?name=MDVSA-2010:219 ([email protected])
http://www.mozilla.org/security/announce/2010/mfsa2010-73.html ([email protected])
http://www.norman.com/about_norman/press_center/news_archive/2010/129223/ ([email protected])
http://www.norman.com/security_center/virus_description_archive/129146/ ([email protected])
http://www.redhat.com/support/errata/RHSA-2010-0808.html ([email protected])
http://www.redhat.com/support/errata/RHSA-2010-0809.html ([email protected])
http://www.redhat.com/support/errata/RHSA-2010-0810.html ([email protected])
http://www.redhat.com/support/errata/RHSA-2010-0861.html ([email protected])
http://www.redhat.com/support/errata/RHSA-2010-0896.html ([email protected])
http://www.securityfocus.com/bid/44425 ([email protected])
http://www.securitytracker.com/id?1024645 ([email protected])
http://www.securitytracker.com/id?1024650 ([email protected])
http://www.securitytracker.com/id?1024651 ([email protected])
http://www.ubuntu.com/usn/USN-1011-2 ([email protected])
http://www.ubuntu.com/usn/USN-1011-3 ([email protected])
http://www.ubuntu.com/usn/usn-1011-1 ([email protected])
http://www.vupen.com/english/advisories/2010/2837 Vendor Advisory ([email protected])
http://www.vupen.com/english/advisories/2010/2857 Vendor Advisory ([email protected])
http://www.vupen.com/english/advisories/2010/2864 Vendor Advisory ([email protected])
http://www.vupen.com/english/advisories/2010/2871 Vendor Advisory ([email protected])
http://www.vupen.com/english/advisories/2011/0061 Vendor Advisory ([email protected])
https://bugzilla.mozilla.org/show_bug.cgi?id=607222 ([email protected])
https://bugzilla.mozilla.org/show_bug.cgi?id=607222#c53 ([email protected])
https://bugzilla.redhat.com/show_bug.cgi?id=646997 ([email protected])
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12108 ([email protected])
https://rhn.redhat.com/errata/RHSA-2010-0812.html ([email protected])
http://blog.mozilla.com/security/2010/10/26/critical-vulnerability-in-firefox-3-5-and-firefox-3-6/ Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://blogs.sun.com/security/entry/multiple_vulnerabilities_in_mozilla_firefox (af854a3a-2127-422b-91ae-364da2661108)
http://isc.sans.edu/diary.html?storyid=9817 (af854a3a-2127-422b-91ae-364da2661108)
http://lists.fedoraproject.org/pipermail/package-announce/2010-November/050233.html (af854a3a-2127-422b-91ae-364da2661108)
http://lists.fedoraproject.org/pipermail/package-announce/2010-October/050061.html (af854a3a-2127-422b-91ae-364da2661108)
http://lists.fedoraproject.org/pipermail/package-announce/2010-October/050077.html (af854a3a-2127-422b-91ae-364da2661108)
http://lists.fedoraproject.org/pipermail/package-announce/2010-October/050154.html (af854a3a-2127-422b-91ae-364da2661108)
http://norman.com/about_norman/press_center/news_archive/2010/129223/en?utm_source=twitterfeed&utm_medium=twitter (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/41761 Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/41965 Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/41966 Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/41969 Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/41975 Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/42003 Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/42008 Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/42043 Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/42867 Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://slackware.com/security/viewer.php?l=slackware-security&y=2010&m=slackware-security.556706 (af854a3a-2127-422b-91ae-364da2661108)
http://support.avaya.com/css/P8/documents/100114329 (af854a3a-2127-422b-91ae-364da2661108)
http://support.avaya.com/css/P8/documents/100114335 (af854a3a-2127-422b-91ae-364da2661108)
http://www.debian.org/security/2010/dsa-2124 (af854a3a-2127-422b-91ae-364da2661108)
http://www.exploit-db.com/exploits/15341 Exploit (af854a3a-2127-422b-91ae-364da2661108)
http://www.exploit-db.com/exploits/15342 Exploit (af854a3a-2127-422b-91ae-364da2661108)
http://www.exploit-db.com/exploits/15352 Exploit (af854a3a-2127-422b-91ae-364da2661108)
http://www.mandriva.com/security/advisories?name=MDVSA-2010:213 (af854a3a-2127-422b-91ae-364da2661108)
http://www.mandriva.com/security/advisories?name=MDVSA-2010:219 (af854a3a-2127-422b-91ae-364da2661108)
http://www.mozilla.org/security/announce/2010/mfsa2010-73.html (af854a3a-2127-422b-91ae-364da2661108)
http://www.norman.com/about_norman/press_center/news_archive/2010/129223/ (af854a3a-2127-422b-91ae-364da2661108)
http://www.norman.com/security_center/virus_description_archive/129146/ (af854a3a-2127-422b-91ae-364da2661108)
http://www.redhat.com/support/errata/RHSA-2010-0808.html (af854a3a-2127-422b-91ae-364da2661108)
http://www.redhat.com/support/errata/RHSA-2010-0809.html (af854a3a-2127-422b-91ae-364da2661108)
http://www.redhat.com/support/errata/RHSA-2010-0810.html (af854a3a-2127-422b-91ae-364da2661108)
http://www.redhat.com/support/errata/RHSA-2010-0861.html (af854a3a-2127-422b-91ae-364da2661108)
http://www.redhat.com/support/errata/RHSA-2010-0896.html (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/bid/44425 (af854a3a-2127-422b-91ae-364da2661108)
http://www.securitytracker.com/id?1024645 (af854a3a-2127-422b-91ae-364da2661108)
http://www.securitytracker.com/id?1024650 (af854a3a-2127-422b-91ae-364da2661108)
http://www.securitytracker.com/id?1024651 (af854a3a-2127-422b-91ae-364da2661108)
http://www.ubuntu.com/usn/USN-1011-2 (af854a3a-2127-422b-91ae-364da2661108)
http://www.ubuntu.com/usn/USN-1011-3 (af854a3a-2127-422b-91ae-364da2661108)
http://www.ubuntu.com/usn/usn-1011-1 (af854a3a-2127-422b-91ae-364da2661108)
http://www.vupen.com/english/advisories/2010/2837 Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.vupen.com/english/advisories/2010/2857 Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.vupen.com/english/advisories/2010/2864 Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.vupen.com/english/advisories/2010/2871 Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.vupen.com/english/advisories/2011/0061 Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://bugzilla.mozilla.org/show_bug.cgi?id=607222 (af854a3a-2127-422b-91ae-364da2661108)
https://bugzilla.mozilla.org/show_bug.cgi?id=607222#c53 (af854a3a-2127-422b-91ae-364da2661108)
https://bugzilla.redhat.com/show_bug.cgi?id=646997 (af854a3a-2127-422b-91ae-364da2661108)
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12108 (af854a3a-2127-422b-91ae-364da2661108)
https://rhn.redhat.com/errata/RHSA-2010-0812.html (af854a3a-2127-422b-91ae-364da2661108)
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2010-3765 (134c704f-9b21-4f2e-91b3-4a467353bcc0)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For mozilla's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.