This host is missing an important security update according to Java for Mac OS X 10.6 Update 6 and 10.7 Update 1.
Successful exploitation may allow an untrusted Java applet to execute arbitrary code outside the Java sandbox. Visiting a web page containing a maliciously crafted untrusted Java applet may lead to arbitrary code execution with the privileges of the current user. Impact Level: System/Application
Upgrade to Java for Mac OS X 10.6 Update 6 and 10.7 Update 1, For updates refer to http://support.apple.com/kb/HT5045
For more information on the vulnerabilities refer the below links.
Java for Mac OS X v10.6.6 and v10.7.2 or Mac OS X Server v10.6.8 and v10.7.2.
CVSS Base Score: 10.0