← Database

CVE-2021-40120

MEDIUM CVSS: 6.5 Published: 2021-11-04 Modified: 2026-06-17

Description

A vulnerability in the web-based management interface of certain Cisco Small Business RV Series Routers could allow an authenticated, remote attacker with administrative privileges to inject arbitrary commands into the underlying operating system and execute them using root-level privileges. This vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by sending malicious input to a specific field in the web-based management interface of an affected device. A successful exploit could allow the attacker to execute arbitrary commands on the underlying Linux operating system as a user with root-level privileges.

Affected Platforms

Cisco Rv016Cisco Application Extension PlatformCisco Rv042Cisco Rv320Cisco Ios XrCisco Rv082Cisco Rv042GCisco Rv325

Weakness Type

CWE-20, CWE-78

References