Cisco Wireless LAN Controller (WLC) devices before 8.0.140.0, 8.1.x and 8.2.x before 8.2.121.0, and 8.3.x before 8.3.102.0 allow remote attackers to cause a denial of service (device reload) by sending crafted Inter-Access Point Protocol (IAPP) packets and then sending a traffic stream metrics (TSM) information request over SNMP, aka Bug ID CSCuz40221.

The IGMP implementation on Cisco Wireless LAN Controller (WLC) devices 4.x, 5.x, 6.x, 7.0 before 7.0.250.0, 7.1, 7.2, and 7.3, when IGMPv3 Snooping is enabled, allows remote attackers to cause a denial of service (memory over-read and device restart) via a crafted field in an IGMPv3 message, aka Bug ID CSCuh33240.

The mDNS snooping functionality on Cisco Wireless LAN Controller (WLC) devices with software 7.4.1.54 and earlier does not properly manage buffers, which allows remote authenticated users to cause a denial of service (device reload) via crafted mDNS packets, aka Bug ID CSCue04153.

Cisco Wireless LAN Controller (WLC) devices with software 4.x, 5.x, 6.0, and 7.0 before 7.0.220.4, when CPU-based ACLs are enabled, allow remote attackers to read or modify the configuration via unspecified vectors, aka Bug ID CSCtu56709.

Cisco Wireless LAN Controller (WLC) devices with software 4.x, 5.x, 6.0, and 7.0 before 7.0.220.0 and 7.1 before 7.1.91.0, when WebAuth is enabled, allow remote attackers to cause a denial of service (device reload) via a sequence of (1) HTTP or (2) HTTPS packets, aka Bug ID CSCtt47435.

The administrative management interface on Cisco Wireless LAN Controller (WLC) devices with software 4.x, 5.x, 6.0, and 7.0 before 7.0.220.0, 7.1 before 7.1.91.0, and 7.2 before 7.2.103.0 allows remote attackers to cause a denial of service (device crash) via a malformed URL in an HTTP request, aka Bug ID CSCts81997.

Unspecified vulnerability in Cisco Wireless LAN Controller (WLC) software 3.2 before 3.2.215.0; 4.1 and 4.2 before 4.2.205.0; 4.1M and 4.2M before 4.2.207.54M; 5.0, 5.1, and 6.0 before 6.0.188.0; and 5.2 before 5.2.193.11 allows remote attackers to cause a denial of service (device reload) via a crafted IKE packet, aka Bug ID CSCta56653.

Unspecified vulnerability in the Wireless LAN Controller (WLC) TSEC driver in the Cisco 4400 WLC, Cisco Catalyst 6500 and 7600 Wireless Services Module (WiSM), and Cisco Catalyst 3750 Integrated Wireless LAN Controller with software 4.x before 4.2.176.0 and 5.x before 5.1 allows remote attackers to cause a denial of service (device crash or hang) via unknown IP packets.

The Cisco Wireless LAN Controller (WLC), Cisco Catalyst 6500 Wireless Services Module (WiSM), and Cisco Catalyst 3750 Integrated Wireless LAN Controller with software 4.x before 4.2.176.0 and 5.2.x before 5.2.157.0 allow remote attackers to cause a denial of service (device reload) via a web authentication (aka WebAuth) session that includes a malformed POST request to login.html.

The Cisco Wireless LAN Controller (WLC), Cisco Catalyst 6500 Wireless Services Module (WiSM), and Cisco Catalyst 3750 Integrated Wireless LAN Controller with software 4.x before 4.2.176.0 and 5.x before 5.2 allow remote attackers to cause a denial of service (web authentication outage or device reload) via unspecified network traffic, as demonstrated by a vulnerability scanner.