CVE-2025-64126 Zenitel TCIV-3+ OS Command Injection

Critical 10.0 Published Updated

Unauthenticated attackers can inject arbitrary OS commands via improper input validation in the Zenitel TCIV-3+ intercom system.

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-2025-64126?

CVE-2025-64126 is a critical command injection vulnerability in Zenitel TCIV-3+, published on 26 Nov 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

An OS command injection vulnerability exists due to improper input validation. The application accepts a parameter directly from user input without verifying it is a valid IP address or filtering potentially malicious characters. This could allow an unauthenticated attacker to inject arbitrary commands.

Weakness: CWE-78

Which versions are affected by CVE-2025-64126?

How do I fix CVE-2025-64126?

No fix has been published for CVE-2025-64126 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-2025-64126 being exploited?

There is no known exploitation of CVE-2025-64126 in the wild and no public exploit code.

Sources

Also known as GHSA-mq5v-8mqv-63m7.

Is CVE-2025-64126 in your software?

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