High severity · published Sep 29, 2026
CVE-2026-102762
The NetX Duo MQTT client leaks the packet carrying a malformed PUBLISH message
8.2
CVSS
0.2%
EPSS
No
On KEV
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.
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 11% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
ND
NetX Duo · Eclipse Foundation
6.0 through 6.5.1.202602 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-102762
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-102762
github.com
https://github.com/eclipse-threadx/netxduo/security/advisories/GHSA-9v23-qwp9-2q3h
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