#VU25653 Resource exhaustion in Cisco NX-OS and Cisco MDS 9000 Series Multilayer Switches

Published: 2020-02-27

Vulnerability identifier: #VU25653

Vulnerability risk: High


CVE-ID: CVE-2020-3175


Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Cisco NX-OS
Operating systems & Components / Operating system
Cisco MDS 9000 Series Multilayer Switches
Hardware solutions / Routers & switches, VoIP, GSM, etc

Vendor: Cisco Systems, Inc


The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to improper resource usage control within the resource handling system. A remote attacker send traffic to the management interface (mgmt0) of an affected device at very high rates and cause unexpected behaviors such as high CPU usage, process crashes, or even full system reboots of an affected device.

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

Cisco NX-OS: All versions

Cisco MDS 9000 Series Multilayer Switches: All versions


External links

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?

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