CVE-2024-42650 Denial of service in n/a

High 7.5 Published 15 Jul 2025 Updated 15 Jul 2025

Attackers can cause a Denial of Service in NanoMQ by sending a crafted PUBLISH message that triggers a segmentation fault.

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-2024-42650?

CVE-2024-42650 is a high-severity denial of service vulnerability in n/a, published on 15 Jul 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

NanoMQ 0.17.5 was discovered to contain a segmentation fault via the component /nanomq/pub_handler.c. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted PUBLISH message.

Which versions are affected by CVE-2024-42650?

It affects 1 product.

Products include Emqx Nanomq.

How do I fix CVE-2024-42650?

No fix has been published for CVE-2024-42650 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2024-42650 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-42650 exists.

Sources

Also known as GHSA-2w98-h9rr-xfqq.