# CVE-2010-3765: Mozilla Multiple Products Remote Code Execution Vulnerability

> CVE-2010-3765: Mozilla Multiple Products Remote Code Execution Vulnerability. CVSS 9.8 (CVSS 3.1), in CISA KEV.

Canonical: https://rewindex.com/cve/CVE-2010-3765
Last updated: 2025-10-22T00:05:51Z

- Published: 2010-10-27 22:00 UTC · Updated: 2025-10-22 00:05 UTC · Assigner: mitre
- CVSS: 9.8 (CVSS 3.1) · Severity: Critical · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS: 83.2%, 100th percentile (scored 2026-10-25)
- CISA KEV: yes, added 2025-10-06, federal due date 2025-10-27, ransomware use: Unknown

## Description

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.

## CISA required action

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

## Affected vendors and products

- Mozilla: Multiple Products

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2010-3765)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2010-3765)
- [http://blog.mozilla.com/security/2010/10/26/critical-vulnerability-in-firefox-3-5-and-firefox-3-6/](http://blog.mozilla.com/security/2010/10/26/critical-vulnerability-in-firefox-3-5-and-firefox-3-6/)
- [http://blogs.sun.com/security/entry/multiple\_vulnerabilities\_in\_mozilla\_firefox](http://blogs.sun.com/security/entry/multiple_vulnerabilities_in_mozilla_firefox)
- [http://lists.fedoraproject.org/pipermail/package-announce/2010-November/050233.html](http://lists.fedoraproject.org/pipermail/package-announce/2010-November/050233.html)
- [http://lists.fedoraproject.org/pipermail/package-announce/2010-October/050061.html](http://lists.fedoraproject.org/pipermail/package-announce/2010-October/050061.html)
- [http://norman.com/about\_norman/press\_center/news\_archive/2010/129223/en?utm\_source=twitterfeed&utm\_medium=twitter](http://norman.com/about_norman/press_center/news_archive/2010/129223/en?utm_source=twitterfeed&utm_medium=twitter)
- [https://bugzilla.mozilla.org/show\_bug.cgi?id=607222](https://bugzilla.mozilla.org/show_bug.cgi?id=607222)
- [https://bugzilla.mozilla.org/show\_bug.cgi?id=607222\#c53](https://bugzilla.mozilla.org/show_bug.cgi?id=607222#c53)
- [https://bugzilla.redhat.com/show\_bug.cgi?id=646997](https://bugzilla.redhat.com/show_bug.cgi?id=646997)
- [http://secunia.com/advisories/41761](http://secunia.com/advisories/41761)
- [http://secunia.com/advisories/41965](http://secunia.com/advisories/41965)
- [http://secunia.com/advisories/41966](http://secunia.com/advisories/41966)
- [http://secunia.com/advisories/41969](http://secunia.com/advisories/41969)
- [http://secunia.com/advisories/41975](http://secunia.com/advisories/41975)
- [http://secunia.com/advisories/42008](http://secunia.com/advisories/42008)
- [http://secunia.com/advisories/42043](http://secunia.com/advisories/42043)
- [http://secunia.com/advisories/42867](http://secunia.com/advisories/42867)
- [http://slackware.com/security/viewer.php?l=slackware-security&y=2010&m=slackware-security.556706](http://slackware.com/security/viewer.php?l=slackware-security&y=2010&m=slackware-security.556706)
- [https://rhn.redhat.com/errata/RHSA-2010-0812.html](https://rhn.redhat.com/errata/RHSA-2010-0812.html)
- [http://support.avaya.com/css/P8/documents/100114329](http://support.avaya.com/css/P8/documents/100114329)
- [http://support.avaya.com/css/P8/documents/100114335](http://support.avaya.com/css/P8/documents/100114335)
- [http://www.debian.org/security/2010/dsa-2124](http://www.debian.org/security/2010/dsa-2124)
- [http://www.exploit-db.com/exploits/15341](http://www.exploit-db.com/exploits/15341)
- [http://www.mandriva.com/security/advisories?name=MDVSA-2010:213](http://www.mandriva.com/security/advisories?name=MDVSA-2010:213)
- [http://www.mandriva.com/security/advisories?name=MDVSA-2010:219](http://www.mandriva.com/security/advisories?name=MDVSA-2010:219)
- [http://www.norman.com/about\_norman/press\_center/news\_archive/2010/129223/](http://www.norman.com/about_norman/press_center/news_archive/2010/129223/)
- [http://www.norman.com/security\_center/virus\_description\_archive/129146/](http://www.norman.com/security_center/virus_description_archive/129146/)
- [http://www.redhat.com/support/errata/RHSA-2010-0808.html](http://www.redhat.com/support/errata/RHSA-2010-0808.html)
- [http://www.redhat.com/support/errata/RHSA-2010-0809.html](http://www.redhat.com/support/errata/RHSA-2010-0809.html)
- [http://www.redhat.com/support/errata/RHSA-2010-0896.html](http://www.redhat.com/support/errata/RHSA-2010-0896.html)
- [http://www.securityfocus.com/bid/44425](http://www.securityfocus.com/bid/44425)
- [http://www.securitytracker.com/id?1024645](http://www.securitytracker.com/id?1024645)
- [http://www.securitytracker.com/id?1024650](http://www.securitytracker.com/id?1024650)
- [http://www.securitytracker.com/id?1024651](http://www.securitytracker.com/id?1024651)
- [http://www.ubuntu.com/usn/usn-1011-1](http://www.ubuntu.com/usn/usn-1011-1)
- [http://www.ubuntu.com/usn/USN-1011-2](http://www.ubuntu.com/usn/USN-1011-2)
- [http://www.ubuntu.com/usn/USN-1011-3](http://www.ubuntu.com/usn/USN-1011-3)
- [http://www.vupen.com/english/advisories/2010/2837](http://www.vupen.com/english/advisories/2010/2837)
- [http://www.vupen.com/english/advisories/2010/2857](http://www.vupen.com/english/advisories/2010/2857)
- [http://www.vupen.com/english/advisories/2010/2871](http://www.vupen.com/english/advisories/2010/2871)
- [http://www.vupen.com/english/advisories/2011/0061](http://www.vupen.com/english/advisories/2011/0061)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2010-3765 · Markdown: https://rewindex.com/cve/CVE-2010-3765.md · JSON: https://rewindex.com/api/v1/cves/CVE-2010-3765 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T02:45:10.585Z