CVE-2021-1583: Cisco NX-OS

Medium severity, CVSS 4.4. EPSS: 0.2% chance of exploitation in the next 30 days.

A vulnerability in the fabric infrastructure file system access control of Cisco Nexus 9000 Series Fabric Switches in Application Centric Infrastructure (ACI) mode could allow an authenticated, local attacker to read arbitrary files on an affected system. This vulnerability is due to improper access control. An attacker with Administrator privileges could exploit this vulnerability by executing a specific vulnerable command on an affected device. A successful exploit could allow the attacker to read arbitrary files on the file system of the affected device.

Affected products

• Cisco NX-OS: version 14.2(7f) only

Published 2021-08-25. Last modified 2026-06-17.