CVE-2010-3765
CWE-119
103.7
RPSRPS range: 0–105; KEV-listed vulnerabilities can receive an exploitation amplifier.
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.
Source: NVD
Signals
- CVSS
- 9.8
- Critical · v3.1
- EPSS
- 83.15%
- Probability of exploitation in the next 30 days (FIRST)
- CISA KEV
- In CISA KEV since Oct 2025
- Fix commit
- No known fix commit
- Sources: MoreFixes, FreshFixes
- Weakness
- CWE-119
- Published
- 28 Oct 2010
- Last modified 22 Apr 2026
How to read these signals: RPS · EPSS · CISA KEV · Data sources
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Data as of 8 Oct 2026, 05:16 UK time