I read some stuff about a month back on bugtraq regarding java deployment toolkit and javaws that looked like it might be a concern. Not sure what the other 26 security fixes are that oracle refer to, but the fact that there are 27 of them at all is a bad sign.
Personally, I now view Java in much the same light as flashplayer. i.e. too big a risk to be worth having installed. Unless you need it for something, I'd take it off and leave it off.