CVE-2021-40120

Cisco Small Business RV Series Routers Command Injection Vulnerability

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.

Categories

6.5
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.48%
Vendor Advisory cisco.com
Affected: Cisco Cisco Small Business RV Series Router Firmware
Published at:
Updated at:

References

Frequently Asked Questions

What is the severity of CVE-2021-40120?
CVE-2021-40120 has been scored as a medium severity vulnerability.
How to fix CVE-2021-40120?
To fix CVE-2021-40120, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-40120 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-40120 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-40120?
CVE-2021-40120 affects Cisco Cisco Small Business RV Series Router Firmware.
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