This indicates an attack attempt to exploit a memory-corruption vulnerability in Mozilla Firefox.
This issue is caused by an error in the vulnerable software when handling overly long floating point numbers. It may allow remote attackers to execute arbitrary code by sending a crafted web page.
Mozilla Firefox 3.0.x (before 3.0.15) and 3.5.x (before 3.5.4)
System Compromise: Remote attackers can gain control of vulnerable systems.
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