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7.1

Moxa NPort 6000‑G2 WebSocket API can crash device

CVE-2026-10825 · published 4 months ago
Summary

The WebSocket interface on Moxa NPort 6000‑G2 devices does not properly check JSON requests. An attacker with a low‑level account can send a malformed request that stops the service and may even cause the device to reboot. Apply the vendor’s firmware update or disable the WebSocket API until it is patched.

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software
VendorProductAffected versions
moxa nport 6000-g2 series <= 1.1.0
Original advisory text
Improper JSON Input Validation in WebSocket API Leads to Denial of Service
A denial-of-service vulnerability exists in the WebSocket API due to insufficient validation and handling of JSON-based requests. A low-privileged authenticated attacker can send a specially crafted request that causes service disruption and may result in an unexpected device reboot.
References
Fix within
Internet-facing 60 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit
  • Gives an attacker partial control
Severity
7.1 High
Exploitation
<1% chance of attack within 30 days
Type
CWE-1287Improper Validation of Specified Type of Input
Timeline
Published16 Jun 2026
Updated4 Nov 2026
First seen16 Jun 2026
Sources
CVE-2026-10825 · NVD
CVE-2026-10825 · MITRE
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