Cisco Nexus 9000 Series Fabric Switches ACI Mode Queue Wedge Denial of Service (CVE-2021-1523)

A vulnerability in Cisco Nexus 9000 Series Fabric Switches in Application Centric Infrastructure ACI Mode could allow an unauthenticated, remote attacker to cause a queue wedge on a leaf switch, which could result in critical control plane traffic to the device being dropped. This could result in...

CVE-2021-1523

creationtimestamp| type| source ---|---|--- 2021-08-26 04:41:24+00:00| seen| MISP/e10655c0-079d-44ff-bb45-9c834fe9fd02...

CVE-2021-1523

CVE-2021-1523 affects Cisco Nexus 9000 Series Fabric Switches in ACI mode . The issue stems from mishandling of ingress TCP traffic to a specific port on a Switched Virtual Interface (SVI), allowing an unauthenticated remote attacker to trigger a queue wedge on a leaf switch. The wedge can cause ...