A vulnerability in the PROFINET handler for Link Layer Discovery Protocol (LLDP) messages of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, adjacent attacker to cause a crash on an affected device, resulting in a denial of service (DoS) condition. The vulnerability is due to insufficient validation of LLDP messages in the PROFINET LLDP message handler. An attacker could exploit this vulnerability by sending a malicious LLDP message to an affected device. A successful exploit could allow the attacker to cause the affected device to reload.
History

Wed, 25 Feb 2026 07:15:00 +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: 2020-09-24T17:51:35.464Z

Updated: 2024-11-13T18:00:50.458Z

Reserved: 2019-12-12T00:00:00.000Z

Link: CVE-2020-3512

cve-icon Vulnrichment

Updated: 2024-08-04T07:37:54.412Z

cve-icon NVD

Status : Modified

Published: 2020-09-24T18:15:21.323

Modified: 2024-11-21T05:31:13.510

Link: CVE-2020-3512

cve-icon Redhat

No data.