CVE-2021-21559

Dell EMC NetWorker, versions 18.x, 19.1.x, 19.2.x 19.3.x, 19.4, and 19.4.0.1 contain an Improper Certificate Validation vulnerability in the client NetWorker Management Console components which uses SSL encrypted connection in order to communicate with the application server. An unauthenticated...

Cisco Adaptive Security Appliance Software OSPFv2 Denial of Service Vulnerability

A vulnerability in the Open Shortest Path First version 2 OSPFv2 code of Cisco Adaptive Security Appliance ASA Software could allow an unauthenticated, adjacent attacker to cause the reload of the affected system. The vulnerability is due to improper handling of OSPFv2 packets. An attacker could...

Cisco Wireless LAN Controller IPv6 Packet Handling Denial of Service Vulnerability

A vulnerability in Cisco Wireless LAN Controller WLC devices could allow an unauthenticated, adjacent attacker could to cause a crash of an affected device. The vulnerability exists due to an unhandled exception that may occur when IPv6 traffic is forwarded to a device that is not configured for...

Cisco TelePresence Authentication Bypass Elevation of Privilege Vulnerability

Cisco TelePresence is a telepresence conferencing solution developed by Cisco. A security vulnerability exists in Cisco TelePresence TC and TE that allows a remote user in a broadcast or collision domain or a local user with physical access to bypass authentication and gain ROOT privileges...

Cisco IOS Voice Gateway Malformed ISDN Q931 Message Denial of Service Vulnerability

A vulnerability in the Integrated Services Digital Network ISDN processing code of Cisco IOS could allow an unauthenticated, adjacent attacker to cause a reload of the affected device. The vulnerability is due to improper processing of malformed ISDN Q931 SETUP messages. An attacker could exploit...

Cisco Wireless LAN Controller Denial of Service Vulnerability

A vulnerability in the wireless intrusion detection WIDS feature of the Cisco Wireless LAN Controller WLC could allow an unauthenticated, remote attacker to force the WLC to become unresponsive. For a Cisco WLC with a default configuration, the attacker could exploit this vulnerability by sending...

Cisco Aironet DHCP Denial of Service Vulnerability

A vulnerability in the DHCP subsystem of Cisco Aironet access points could allow an unauthenticated, adjacent attacker to create a denial of service condition. The vulnerability is due to an error condition that may occur when very short DHCP leases are in use. If an attacker can prevent the acce...

Cisco Aironet EAP Debugging Denial of Service Vulnerability

A vulnerability in the debugging features of Cisco IOS running on Cisco Aironet access points could allow an unauthenticated, adjacent attacker to create a denial of service condition. The vulnerability is due to a failure to properly process a certain debugging message that may occur when the...

Cisco IOS XR Software Malformed MPLS Packet Denial of Service Vulnerability

A vulnerability in parsing of malformed Multiprotocol Label Switching MPLS packets in Cisco IOS XR Software for Cisco Network Convergence System 6000 Series Routers could allow an unauthenticated, adjacent attacker to cause a lockup and eventual reload of a network processor unit NPU and a line...

Cisco IOS XR Software Packet Parsing Denial of Service Vulnerability

A vulnerability in the packet parsing code of Cisco IOS XR Software for ASR 9000 Series Aggregation Services Routers could allow an unauthenticated, adjacent attacker to cause a lockup and eventual reload of a Network Processor NP chip and a line card processing traffic. The vulnerability is due ...

Cisco IOS Software Link Layer Discovery Protocol Denial of Service Vulnerability

A vulnerability in Link Layer Discovery Protocol LLDP in Cisco switches could allow an unauthenticated, adjacent attacker to cause a reload of the affected device. The vulnerability is due to incorrect handling of malformed LLDP packets. An attacker could exploit this vulnerability by sending a...

Cisco Adaptive Security Appliance DHCPv6 Denial of Service Vulnerability

A vulnerability in the DHCP code of Cisco ASA Software could allow an unauthenticated, adjacent attacker to cause the reload of an affected system. The vulnerability is due to insufficient validation of crafted or malformed DHCP version 6 DHCPv6 packets when DHCPv6 replay feature is enabled. An...

Cisco IOS Software High Priority Queue Denial of Service Vulnerability

A vulnerability in the packet driver code of Cisco IOS Software could allow an unauthenticated, remote attacker to cause a reload of the affected device, resulting in a denial of service DoS condition. The vulnerability is due to how the packet driver code handles packets that belong to protocols...

Cisco IOS Software DHCP Server remember Functionality Vulnerability

An issue in the DHCP server code of Cisco IOS Software could allow an unauthenticated, adjacent attacker to cause the device to reload. The issue is due to the remember functionality of the DHCP server. An attacker could exploit this issue by obtaining a lease and then releasing it. An exploit...