CVE-2022-43443 Command injection in WCR-1166DS

High 8.0 Published 19 Dec 2022 Updated 17 Apr 2025

A network-adjacent attacker can execute arbitrary OS commands on Buffalo routers via a crafted request to the management page.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Local or same network only
Victim action needed: Not needed
Fix: None listed

What is CVE-2022-43443?

CVE-2022-43443 is a high-severity command injection vulnerability in BUFFALO INC. WCR-1166DS, published on 19 Dec 2022. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

OS command injection vulnerability in Buffalo network devices allows an network-adjacent attacker to execute an arbitrary OS command if a specially crafted request is sent to the management page.

Weakness: CWE-78

Which versions are affected by CVE-2022-43443?

It affects 11 products.

Products include Buffalo Wcr-1166ds Firmware, Buffalo Wsr-2533dhp2 Firmware, Buffalo Wsr-2533dhp3 Firmware, Buffalo Wsr-2533dhp Firmware, Buffalo Wsr-2533dhpl2 Firmware, Buffalo Wsr-2533dhpl Firmware and 5 more.

How do I fix CVE-2022-43443?

No fix has been published for CVE-2022-43443 yet. Limit exposure of the affected software until one is available.

Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.

Is CVE-2022-43443 being exploited?

There is no known exploitation of CVE-2022-43443 in the wild and no public exploit code.

Sources

Also known as GHSA-242r-mxxc-q586.