Security Advisory

CVE-2021-1231

CVE vulnerability detail — eXtreme Datacenter Security Operations

Published 2021-02-24 19:30:36

Last updated 2024-11-08 23:38:56

Assigner cisco

State PUBLISHED

Description

A vulnerability in the Link Layer Discovery Protocol (LLDP) for Nexus 9000 Series Fabric Switches in Application Centric Infrastructure (ACI) mode could allow an unauthenticated, adjacent attacker to disable switching on a small form-factor pluggable (SFP) interface. This vulnerability is due to incomplete validation of the source of a received LLDP packet. An attacker could exploit this vulnerability by sending a crafted LLDP packet on an SFP interface to an affected device. A successful exploit could allow the attacker to disable switching on the SFP interface, which could disrupt network traffic.

← Browse all CVEs View on cve.org ↗