CVE-2020-3266: Cisco SD-WAN Firmware

High severity, CVSS 7.8. EPSS: 0.6% chance of exploitation in the next 30 days.

A vulnerability in the CLI of Cisco SD-WAN Solution software could allow an authenticated, local attacker to inject arbitrary commands that are executed with root privileges. The vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by authenticating to the device and submitting crafted input to the CLI utility. The attacker must be authenticated to access the CLI utility. A successful exploit could allow the attacker to execute commands with root privileges.

Affected products

• Cisco SD-WAN Firmware: before 19.2.2 (fixed in 19.2.2)

Published 2020-03-19. Last modified 2026-06-17.