Cisco NX-OS Software MPLS OAM Denial of Service (CVE-2021-1588)

A vulnerability in the MPLS Operation, Administration, and Maintenance OAM feature of Cisco NX-OS Software could allow an unauthenticated, remote attacker to cause a denial of service DoS condition on an affected device. This vulnerability is due to improper input validation when an affected devi...

CVE-2021-1588

CVE-2021-1588 describes a DoS in Cisco NX-OS MPLS OAM due to improper input validation while processing MPLS echo-request/echo-reply packets. An unauthenticated remote attacker can send crafted MPLS packets to an interface enabled for MPLS forwarding, causing the MPLS OAM process to crash and res...