The IPv6 protocol allows remote attackers to cause a denial of service via crafted IPv6 type 0 route headers (IPV6RTHDRTYPE0) that create network amplification between two routers.
Multiple buffer overflows in the ISO network protocol support in the NetBSD kernel 2.0 through 4.0BETA2, and NetBSD-current before 20070329, allow local users to execute arbitrary code via long parameters to certain functions, as demonstrated by a long sockaddr structure argument to the clnproute function.