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.
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Affected Vendors & Products
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History
Thu, 07 Nov 2024 22:15:00 +0000
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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
Vulnrichment
Updated: 2024-08-03T16:18:10.424Z
NVD
Status : Modified
Published: 2021-09-23T03:15:13.210
Modified: 2024-11-21T05:44:45.667
Link: CVE-2021-1621
Redhat
No data.