Cisco IOS 12.2 and 15.0 through 15.3 and IOS XE 3.2 through 3.7 before 3.7.5S and 3.8 through 3.10 before 3.10.1S allow remote attackers to cause a denial of service (device reload) via a malformed IKEv2 packet, aka Bug ID CSCui88426.
The TCP Input module in Cisco IOS 12.2 through 12.4 and 15.0 through 15.4, when NAT is used, allows remote attackers to cause a denial of service (memory consumption or device reload) via crafted TCP packets, aka Bug IDs CSCuh33843 and CSCuj41494.
The Application Layer Gateway (ALG) module in Cisco IOS 12.2 through 12.4 and 15.0 through 15.4, when NAT is used, allows remote attackers to cause a denial of service (device reload) via crafted DNS packets, aka Bug ID CSCue00996.
The SSL VPN (aka WebVPN) feature in Cisco IOS 15.1 through 15.4 allows remote attackers to cause a denial of service (memory consumption) via crafted HTTP requests, aka Bug ID CSCuf51357.
Cisco IOS 15.1 through 15.3 and IOS XE 3.3 and 3.5 before 3.5.2E; 3.7 before 3.7.5S; and 3.8, 3.9, and 3.10 before 3.10.2S allow remote attackers to cause a denial of service (I/O memory consumption and device reload) via a malformed IPv6 packet, aka Bug ID CSCui59540.
Cisco IOS 12.2 and 15.0 through 15.3, when used with the Kailash FPGA before 2.6 on RSP720-3C-10GE and RSP720-3CXL-10GE devices, allows remote attackers to cause a denial of service (route switch processor outage) via crafted IP packets, aka Bug ID CSCug84789.
The MLDP implementation in Cisco IOS 15.3(3)S and earlier on 7600 routers, when many VRFs are configured, allows remote attackers to cause a denial of service (chunk corruption and device reload) by establishing many multicast flows, aka Bug ID CSCue22345.
The SSL VPN implementation in Cisco IOS 15.3(1)T2 and earlier allows remote authenticated users to cause a denial of service (interface queue wedge) via crafted DTLS packets in an SSL session, aka Bug IDs CSCuh97409 and CSCud90568.
Memory leak in Cisco IOS 12.2, 15.1, and 15.2; IOS XE 3.4.2S through 3.4.5S; and IOS XE 3.6.xS before 3.6.1S allows remote attackers to cause a denial of service (memory consumption or device reload) via malformed IKEv1 packets, aka Bug ID CSCtx66011.
Race condition in the IPv6 virtual fragmentation reassembly (VFR) implementation in Cisco IOS 12.2 through 12.4 and 15.0 through 15.3 allows remote attackers to cause a denial of service (device reload or hang) via fragmented IPv6 packets, aka Bug ID CSCud64812.