A vulnerability in the EtherChannel port subscription logic of Cisco Nexus 9500 Series Switches could allow an unauthenticated, remote attacker to bypass access control list (ACL) rules that are configured on an affected device. This vulnerability is due to oversubscription of resources that occurs when applying ACLs to port channel interfaces. An attacker could exploit this vulnerability by attempting to access network resources that are protected by the ACL. A successful exploit could allow the attacker to access network resources that would be protected by the ACL that was applied on the port channel interface.
History

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cve-icon MITRE

Status: PUBLISHED

Assigner: cisco

Published: 2021-08-25T19:11:24.226647Z

Updated: 2024-09-16T22:25:20.356Z

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

Link: CVE-2021-1591

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2021-08-25T20:15:11.863

Modified: 2023-11-07T03:28:43.553

Link: CVE-2021-1591

cve-icon Redhat

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