CVE-2026-10825

Improper JSON Input Validation in WebSocket API Leads to Denial of Service

State: Published
Severity: 7.1 High
Published: Jun 16, 2026
Updated: Nov 2, 2026
Reserved: Jun 4, 2026

Description

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.

Scores

CVSS	Score	Vector	Source
4.0	7.1 High	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N	Moxa

Weaknesses

CWE-1287 Improper Validation of Specified Type of Input

Affected Products

Product	Versions
NPort 6000-G2 SeriesMoxa	1.0 through 1.1.0Affected 1.2.0Not affected

References

https://www.moxa.com/en/support/product-support/security-advisory/mpsa-268270-cve-2026-10825-improper-validation-of-input-vulnerability-in-serial-device-serversvendor-advisory

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