Existe uma falha de segurança nas versões:
SDK and JRE 1.4.2_05 and earlier, all 1.4.1 and 1.4.0 releases, and 1.3.1_12 and earlier
A vulnerability in the Java Plug-in may allow an untrusted applet to escalate privileges, through JavaScript calling into Java code, including reading and writing files with the privileges of the user running the applet.
http://sunsolve.sun.com/search/document.do?assetkey=1-26-57591-1
Mãos a obra moçada…
Hora de atualizar,
Abraços a todos
Carlos