CVE-2026-102762 Denial of service in NetX Duo
A remote attacker can exhaust network resources by sending malformed MQTT PUBLISH messages, causing a denial of service on IoT devices using NetX Duo.
- 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-2026-102762?
CVE-2026-102762 is a high-severity denial of service vulnerability in Eclipse Foundation NetX Duo, published on 29 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The NetX Duo MQTT client leaks the packet carrying a malformed PUBLISH message. Each malformed PUBLISH costs one packet, or one chain of packets, from the network driver's receive pool, and nothing returns it. A peer that can deliver a few dozen such messages exhausts the pool and stops all inbound network traffic on the device until it is rebooted.
Weakness: CWE-401
Which versions are affected by CVE-2026-102762?
How do I fix CVE-2026-102762?
No fix has been published for CVE-2026-102762 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-2026-102762 being exploited?
There is no known exploitation of CVE-2026-102762 in the wild and no public exploit code.
Sources
Also known as GHSA-72x2-349w-qfqm, GHSA-9v23-qwp9-2q3h.