According to its banner, the remote Apple iOS device is missing a security update. Versions of Apple iOS 3.0 through 5.0 are affected by vulnerabilities within the following components :
Binary data 6096.prm
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-3246
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-3439
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-3440
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-3441
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-3442
lists.apple.com/archives/security-announce/2011//Nov/msg00001.html
support.apple.com/kb/HT5052