Cisco IOS 12.2, 12.4, 15.0, 15.1, 15.2, 15.3, and 15.4 and IOS XE 2.5.x, 2.6.x, 3.1.xS up to and including 3.12.xS prior to 3.12.3S, 3.2.xE up to and including 3.7.xE prior to 3.7.1E, 3.3.xSG, 3.4.xSG, and 3.13.xS prior to 3.13.2S allow remote malicious users to cause a denial of... Cisco IOS 12.2, 12.4, 15.0, 15.1, 15.2, 15.3, and 15.4 and IOS XE 2.5.x, 2.6.x, 3.1.xS up to and including 3.12.xS prior to 3.12.3S, 3.2.xE up to and including 3.7.xE prior to 3.7.1E, 3.3.xSG, 3.4.xSG, and 3.13.xS prior to 3.13.2S allow remote malicious users to cause a denial of... The IPv6 snooping functionality in the first-hop security subsystem in Cisco IOS 12.2, 15.0, 15.1, 15.2, 15.3, 15.4, and 15.5 and IOS XE 3.2SE, 3.3SE, 3.3XO, 3.4SG, 3.5E, and 3.6E prior to 3.6.3E; 3.7E prior to 3.7.2E; 3.9S and 3.10S prior to 3.10.6S; 3.11S prior to 3.11.4S; 3.12... The IPv6 snooping functionality in the first-hop security subsystem in Cisco IOS 12.2, 15.0, 15.1, 15.2, 15.3, 15.4, and 15.5 and IOS XE 3.2SE, 3.3SE, 3.3XO, 3.4SG, 3.5E, and 3.6E prior to 3.6.3E; 3.7E prior to 3.7.2E; 3.9S and 3.10S prior to 3.10.6S; 3.11S prior to 3.11.4S; 3.12...