CVE-2021-1520

Cisco RV340, RV340W, RV345, and RV345P Dual WAN Gigabit VPN Routers Local Privilege Escalation Vulnerability

Description

A vulnerability in the internal message processing of Cisco RV340, RV340W, RV345, and RV345P Dual WAN Gigabit VPN Routers could allow an authenticated, local attacker to run arbitrary commands with root privileges on the underlying operating system (OS). This vulnerability exists because an internal messaging service does not properly sanitize input. An attacker could exploit this vulnerability by first authenticating to the device and then sending a crafted request to the internal service. A successful exploit could allow the attacker to run arbitrary commands with root privileges on the underlying OS. To exploit this vulnerability, the attacker must have valid Administrator credentials for the device.

Category

6.7
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.03%
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-2021-1520?
CVE-2021-1520 has been scored as a medium severity vulnerability.
How to fix CVE-2021-1520?
To fix CVE-2021-1520, 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-2021-1520 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-1520 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-2021-1520?
CVE-2021-1520 affects Cisco Cisco Small Business RV Series Router Firmware.
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