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 device is processing an MPLS echo-request or echo-reply packet. An attacker could exploit this vulnerability by sending malicious MPLS echo-request or echo-reply packets to an interface that is enabled for MPLS forwarding on the affected device. A successful exploit could allow the attacker to cause the MPLS OAM process to crash and restart multiple times, causing the affected device to reload and resulting in a DoS condition.
History

Thu, 07 Nov 2024 22:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


cve-icon MITRE

Status: PUBLISHED

Assigner: cisco

Published: 2021-08-25T19:11:13.438325Z

Updated: 2024-11-07T22:02:19.462Z

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

Link: CVE-2021-1588

cve-icon Vulnrichment

Updated: 2024-08-03T16:18:10.931Z

cve-icon NVD

Status : Modified

Published: 2021-08-25T20:15:11.537

Modified: 2024-11-21T05:44:41.290

Link: CVE-2021-1588

cve-icon Redhat

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