What’s Vulnerable › Vulnerabilities
CVE-2010-3765: Mozilla Multiple Products Remote Code Execution Vulnerability
- Severity: critical (CVSS 9.3 v2.0)
- Exploited in the wild: yes — in CISA KEV since 2025-10-06
- EPSS: 83.2% probability of exploitation in the next 30 days
- Public exploit or detection template: yes
- Published: 2010-10-28 · updated 2026-06-16
- Weakness: CWE-119
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.
Affected products
- Mozilla Firefox: 3.5, 3.5.1, 3.5.2, 3.5.3, 3.5.4, 3.5.5 (+19)
- Mozilla Seamonkey: 2.0, 2.0-alpha_1, 2.0-alpha_2, 2.0-alpha_3, 2.0-beta_1, 2.0-beta_2 (+11)
- Mozilla Thunderbird: 3.0.1, 3.0.2, 3.0.3, 3.0.4, 3.0.5, 3.0.6 (+8)
References
- 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://isc.sans.edu/diary.html?storyid=9817
- 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/050077.html
- http://lists.fedoraproject.org/pipermail/package-announce/2010-October/050154.html
- http://norman.com/about_norman/press_center/news_archive/2010/129223/en?utm_source=twitterfeed&utm_medium=twitter
- http://secunia.com/advisories/41761
- http://secunia.com/advisories/41965
- http://secunia.com/advisories/41966
- http://secunia.com/advisories/41969
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