MQTT Client Vulnerability in NetX Duo by ExpressLogic
CVE-2026-102762

8.2HIGH

Key Information:

Vendor

Eclipse Foundation

Status
Netx Duo
Vendor
CVE Published:
29 September 2026

What is CVE-2026-102762?

The NetX Duo MQTT client has a critical issue where it leaks packets upon receiving malformed PUBLISH messages. Each malformed message consumes a packet from the network driver's receive pool, leading to an operational failure as the pool becomes exhausted. This situation results in a halt of all inbound network traffic on the device until a reboot is performed, impacting overall device functionality and reliability.

Affected Version(s)

NetX Duo 6.0 <= 6.5.1.202602

NetX Duo 6.5.2.202603

References

https://github.com/eclipse-threadx/netxduo/security/advis...

CVSS V4

Score:
8.2
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
High
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

leginwos
adawn0106
.