CVE-2026-20033
published 2026-02-25CVE-2026-20033: A vulnerability in Cisco Nexus 9000 Series Fabric Switches in ACI mode could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS)…
high7.4CVSS 3.1
AVAACLPRNUINSCCNINAH
A vulnerability in Cisco Nexus 9000 Series Fabric Switches in ACI mode could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected device.
This vulnerability is due to insufficient validation when processing specific Ethernet frames. An attacker could exploit this vulnerability by sending a crafted Ethernet frame to the management interface of an affected device. A successful exploit could allow the attacker to cause the device to reload unexpectedly, resulting in a DoS condition.
Note: Only the out-of-band (OOB) management interface is affected.
Affected
58 ranges· showing 25
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| cisco | cisco_nx-os_system_software_in_aci_mode | — | — |
| cisco | cisco_nx-os_system_software_in_aci_mode | — | — |
| cisco | cisco_nx-os_system_software_in_aci_mode | — | — |
| cisco | cisco_nx-os_system_software_in_aci_mode | — | — |
| cisco | cisco_nx-os_system_software_in_aci_mode | — | — |
| cisco | cisco_nx-os_system_software_in_aci_mode | — | — |
| cisco | cisco_nx-os_system_software_in_aci_mode | — | — |
| cisco | cisco_nx-os_system_software_in_aci_mode | — | — |
| cisco | cisco_nx-os_system_software_in_aci_mode | — | — |
| cisco | cisco_nx-os_system_software_in_aci_mode | — | — |
| cisco | cisco_nx-os_system_software_in_aci_mode | — | — |
| cisco | cisco_nx-os_system_software_in_aci_mode | — | — |
| cisco | cisco_nx-os_system_software_in_aci_mode | — | — |
| cisco | cisco_nx-os_system_software_in_aci_mode | — | — |
| cisco | cisco_nx-os_system_software_in_aci_mode | — | — |
| cisco | cisco_nx-os_system_software_in_aci_mode | — | — |
| cisco | cisco_nx-os_system_software_in_aci_mode | — | — |
| cisco | cisco_nx-os_system_software_in_aci_mode | — | — |
| cisco | cisco_nx-os_system_software_in_aci_mode | — | — |
| cisco | cisco_nx-os_system_software_in_aci_mode | — | — |
| cisco | cisco_nx-os_system_software_in_aci_mode | — | — |
| cisco | cisco_nx-os_system_software_in_aci_mode | — | — |
| cisco | cisco_nx-os_system_software_in_aci_mode | — | — |
| cisco | cisco_nx-os_system_software_in_aci_mode | — | — |
| cisco | cisco_nx-os_system_software_in_aci_mode | — | — |