CVE-2021-1621

CVE-2021-1621 affects Cisco IOS XE Software. The issue is in the Layer 2 punt code where improper handling of certain Layer 2 frames can allow an unauthenticated, adjacent attacker to cause a queue wedge on an interface receiving those frames, producing a denial-of-service. Exploitation relies on...

CVE-2021-1621: Undefined Security Weakness

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 certa...

CVE-2021-34713: Undefined Security Weakness

A vulnerability in the Layer 2 punt code of Cisco IOS XR Software running on Cisco ASR 9000 Series Aggregation Services Routers could allow an unauthenticated, adjacent attacker to cause the affected line card to reboot. This vulnerability is due to incorrect handling of specific Ethernet frames...