Describe CVE-2007-4430.
What is CVE-2007-4430?
Unspecified vulnerability in Cisco IOS 12.0 through 12.4 allows context-dependent attackers to cause a denial of service (device restart and BGP routing table rebuild) via certain regular expressions in a "show ip bgp regexp" command.  NOTE: unauthenticated remote attacks are possible in environments with anonymous telnet and Looking Glass access..