CVE-2019-1726: Cisco NX-OS

High severity, CVSS 7.8. EPSS: 0.4% chance of exploitation in the next 30 days.

A vulnerability in the CLI of Cisco NX-OS Software could allow an authenticated, local attacker to access internal services that should be restricted on an affected device, such as the NX-API. The vulnerability is due to insufficient validation of arguments passed to a certain CLI command. An attacker could exploit this vulnerability by including malicious input as the argument to the affected command. A successful exploit could allow the attacker to bypass intended restrictions and access internal services of the device. An attacker would need valid device credentials to exploit this vulnerability.

Affected products

• Cisco NX-OS: from 5.2, before 6.2\(25\) (fixed in 6.2\(25\)); from 7.3, before 8.3\(2\) (fixed in 8.3\(2\)); from 7.0\(3\)i7, before 7.0\(3\)i7\(3\) (fixed in 7.0\(3\)i7\(3\)); before 6.0\(2\)a8\(11\) (fixed in 6.0\(2\)a8\(11\)); from 7.0\(3\), before 7.0\(3\)i7\(3\) (fixed in 7.0\(3\)i7\(3\)); before 7.3\(4\)n1\(1\) (fixed in 7.3\(4\)n1\(1\)); …

Published 2019-05-15. Last modified 2026-06-17.