CVE-2022-20705 Cisco Small Business RV Series Routers Vulnerabilities

Critical 10.0 Published 10 Feb 2022 Updated 6 Nov 2024

Attackers can execute arbitrary code, elevate privileges, and cause denial of service on Cisco Small Business RV Series Routers via memory corruption flaws.

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

What is CVE-2022-20705?

CVE-2022-20705 is a critical memory corruption vulnerability in Cisco Small Business RV Series Router Firmware, published on 10 Feb 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Multiple vulnerabilities in Cisco Small Business RV160, RV260, RV340, and RV345 Series Routers could allow an attacker to do any of the following: Execute arbitrary code Elevate privileges Execute arbitrary commands Bypass authentication and authorization protections Fetch and run unsigned software Cause denial of service (DoS) For more information about these vulnerabilities, see the Details section of this advisory.

Weakness: CWE-787, CWE-121

Which versions are affected by CVE-2022-20705?

It affects 9 products.

Products include Cisco Rv160 Firmware, Cisco Rv160w Firmware, Cisco Rv260 Firmware, Cisco Rv260p Firmware, Cisco Rv260w Firmware, Cisco Rv340 Firmware and 3 more.

How do I fix CVE-2022-20705?

No fix has been published for CVE-2022-20705 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-2022-20705 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-20705 exists.

Public exploit code: 1 Metasploit module.

Sources

Also known as GHSA-fc53-xp9c-pw84.