Multiple unspecified vulnerabilities in the (1) Mobile IP NAT Traversal feature and (2) Mobile IPv6 subsystem in Cisco IOS 12.3 through 12.4 allow remote attackers to cause a denial of service (input queue wedge and interface outage) via MIPv6 packets, aka Bug ID CSCsm97220.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12290
https://exchange.xforce.ibmcloud.com/vulnerabilities/49424
http://www.vupen.com/english/advisories/2009/0851
http://www.securityfocus.com/bid/34241
http://www.cisco.com/en/US/products/products_security_advisory09186a0080a90469.shtml
http://www.cisco.com/en/US/products/products_security_advisory09186a0080a9042f.shtml