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CVE-2022-50789 SOUND4 IMPACT/FIRST/PULSE/Eco <=2.x Conditional Command Injection via dns.php

High 8.5 Published Updated

Unauthenticated attackers can execute arbitrary commands on SOUND4 audio processors by sending a crafted HTTP POST request to dns.php.

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-2022-50789?

CVE-2022-50789 is a high-severity command injection vulnerability in Kantar Media BigVoice2, published on 30 Dec 2025. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

SOUND4 IMPACT/FIRST/PULSE/Eco <=2.x contains a command injection vulnerability that allows local authenticated users to create malicious files in the /tmp directory with .dns.pid extension. Unauthenticated attackers can execute the malicious commands by making a single HTTP POST request to the vulnerable dns.php script, which triggers command execution and then deletes the file.

Weakness: CWE-78

Which versions are affected by CVE-2022-50789?

It affects 9 products.

Products include Sound4 Big Voice2 Firmware, Sound4 Big Voice4 Firmware, Sound4 First Firmware, Sound4 Impact Eco Firmware, Sound4 Impact Firmware, Sound4 Pulse Eco Firmware and 3 more.

How do I fix CVE-2022-50789?

No fix has been published for CVE-2022-50789 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-2022-50789 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-50789 exists.

Sources

Also known as GHSA-x593-jp73-3qq7.

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