CVE-2022-20753 Cisco Small Business RV Series Routers Remote Code Execution Vulnerability

Medium 4.7 Published Updated

An authenticated administrator can execute arbitrary code on Cisco Small Business RV Series Routers via malicious input in the web management interface.

Exploited in the wild
Not known
Login needed
An administrator
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2022-20753?

CVE-2022-20753 is a medium-severity memory corruption vulnerability in Cisco Small Business RV Series Router Firmware, published on 4 May 2022. An attacker needs administrator access to exploit it, with no action from the victim.

Official description

A vulnerability in web-based management interface of Cisco Small Business RV340 and RV345 Routers could allow an authenticated, remote attacker to execute arbitrary code on an affected device. This vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by sending malicious input to an affected device. A successful exploit could allow the attacker to execute remote code on the affected device. To exploit this vulnerability, an attacker would need to have valid Administrator credentials on the affected device.

Weakness: CWE-787, CWE-121

Which versions are affected by CVE-2022-20753?

It affects 4 products.

Products include Cisco Rv340 Firmware, Cisco Rv340w Firmware, Cisco Rv345 Firmware, Cisco Rv345p Firmware.

How do I fix CVE-2022-20753?

No fix has been published for CVE-2022-20753 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2022-20753 being exploited?

There is no known exploitation of CVE-2022-20753 in the wild and no public exploit code.

Sources

Also known as GHSA-x2hp-jfj2-m3hc.

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