7.2
CVSSv3

CVE-2021-40120

Published: 04/11/2021 Updated: 07/11/2023
CVSS v2 Base Score: 9 | Impact Score: 10 | Exploitability Score: 8
CVSS v3 Base Score: 7.2 | Impact Score: 5.9 | Exploitability Score: 1.2
VMScore: 801
Vector: AV:N/AC:L/Au:S/C:C/I:C/A:C

Vulnerability Summary

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 malicious user to execute arbitrary commands on the underlying Linux operating system as a user with root-level privileges.

Vulnerability Trend

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cisco ios_xr 4.2.3.06

cisco application extension platform 1.5.1.13

Vendor Advisories

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 u ...