CVE-2023-20014: Cisco Nexus Dashboard

High severity, CVSS 7.5. EPSS: 1% chance of exploitation in the next 30 days.

A vulnerability in the DNS functionality of Cisco Nexus Dashboard Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition. This vulnerability is due to the improper processing of DNS requests. An attacker could exploit this vulnerability by sending a continuous stream of DNS requests to an affected device. A successful exploit could allow the attacker to cause the coredns service to stop working or cause the device to reload, resulting in a DoS condition.

Affected products

• Cisco Nexus Dashboard: before 2.3\(1c\) (fixed in 2.3\(1c\))

Published 2023-03-01. Last modified 2026-06-17.