CVE-2022-20842 Cisco Small Business RV Series Routers Vulnerabilities

Critical 9.0 Published 10 Aug 2022 Updated 1 Nov 2024

Unauthenticated remote attackers can execute arbitrary code or cause denial of service on Cisco Small Business RV Series Routers.

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-2022-20842?

CVE-2022-20842 is a critical memory corruption vulnerability in Cisco Small Business RV Series Router Firmware, published on 10 Aug 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 unauthenticated, remote attacker to execute arbitrary code or cause a denial of service (DoS) condition on an affected device. For more information about these vulnerabilities, see the Details section of this advisory.

Weakness: CWE-20, CWE-120

Which versions are affected by CVE-2022-20842?

It affects 4 products.

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

How do I fix CVE-2022-20842?

No fix has been published for CVE-2022-20842 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-2022-20842 being exploited?

There is no known exploitation of CVE-2022-20842 in the wild and no public exploit code.

Sources

Also known as GHSA-97p7-948q-cpjh.