CVE-2023-54329 Inbit Messenger 4.9.0 - Unauthenticated Remote Command Execution (RCE)

Critical 9.3 Published Updated

Unauthenticated attackers can execute arbitrary commands with system privileges via crafted XML packets exploiting a stack overflow in Inbit Messenger.

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-2023-54329?

CVE-2023-54329 is a critical memory corruption vulnerability in Inbit Messenger, published on 13 Jan 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Inbit Messenger 4.6.0 - 4.9.0 contains a remote command execution vulnerability that allows unauthenticated attackers to execute arbitrary commands by exploiting a stack overflow in the messenger's protocol. Attackers can send specially crafted XML packets to port 10883 with a malicious payload to trigger the vulnerability and execute commands with system privileges.

Weakness: CWE-787, CWE-121

Which versions are affected by CVE-2023-54329?

It affects 1 product.

Products include Inbit Inbit Messenger.

How do I fix CVE-2023-54329?

No fix has been published for CVE-2023-54329 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-2023-54329 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-54329 exists.

Sources

Also known as GHSA-xvhq-qrmp-cx9w.

Is CVE-2023-54329 in your software?

Upload an SBOM and sbomify checks it against every vulnerability here, every day.

Check your SBOMs for free