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.
History

Sat, 09 Nov 2024 00:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


cve-icon MITRE

Status: PUBLISHED

Assigner: cisco

Published: 2021-02-24T19:30:36.992019Z

Updated: 2024-11-08T23:38:56.652Z

Reserved: 2020-11-13T00:00:00

Link: CVE-2021-1231

cve-icon Vulnrichment

Updated: 2024-08-03T16:02:56.339Z

cve-icon NVD

Status : Modified

Published: 2021-02-24T20:15:13.193

Modified: 2023-11-07T03:27:45.573

Link: CVE-2021-1231

cve-icon Redhat

No data.