A vulnerability in the Layer 2 punt code of Cisco IOS XE Software could allow an unauthenticated, adjacent attacker to cause a queue wedge on an interface that receives specific Layer 2 frames, resulting in a denial of service (DoS) condition. This vulnerability is due to improper handling of certain Layer 2 frames. An attacker could exploit this vulnerability by sending specific Layer 2 frames on the segment the router is connected to. A successful exploit could allow the attacker to cause a queue wedge on the interface, resulting in a DoS condition.
History

Thu, 07 Nov 2024 22:15:00 +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: 2021-09-23T02:31:07.087709Z

Updated: 2024-11-07T21:51:22.094Z

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

Link: CVE-2021-1621

cve-icon Vulnrichment

Updated: 2024-08-03T16:18:10.424Z

cve-icon NVD

Status : Modified

Published: 2021-09-23T03:15:13.210

Modified: 2024-11-21T05:44:45.667

Link: CVE-2021-1621

cve-icon Redhat

No data.