CVE-2021-40120CWE-20

Cisco Small Business RV Series Routers Command Injection Vulnerability

Medium · published November 4, 2021

CVSS v3.1
6.5
EPSS
2%
Percentile
80.6
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
6.5 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
CVSS v4.0
Not supplied
EPSS
0.01999 · 80.6th percentile
Weakness
CWE-20 · Improper Input Validation
Published
2021-11-04T15:35Z
EPSS history
Timeline
  • 04 NOV 15:35Z
    Cisco Small Business RV Series Routers Command Injection Vulnerability
    cvelistv5