Out-of-bounds read in NetX Duo - CVE-2026-102717
Published: November 9, 2026
Vulnerability identifier: #VU162960
CSH Severity: Medium
CVSS v4: 8.3 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-102717
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows an unauthenticated remote attacker to obtain unrelated process memory or cause a denial of service.
The vulnerability exists due to an ABI mismatch that leaves bearer arguments uninitialized in NetX Duo when NXD_MQTT_OVER_WEBSOCKET is enabled and the application calls nxd_mqtt_client_websocket_set. An unauthenticated remote attacker acting as the configured WebSocket peer can receive memory as bearer credentials during a subsequent connection, with disclosure or a crash depending on unpredictable runtime state.
Affected software
NetX Duo
How to mitigate CVE-2026-102717
Install security update from vendor's website.
NetX Duo - update to 6.5.2.202603