CVE-2026-10825

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

Published Jun 16, 2026 CVSS 4.0 · 7.1 High EPSS < 1% KEV · Not listed
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.

Remediation

Vendor Solution

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

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
Title Improper JSON Input Validation in WebSocket API Leads to Denial of Service
First Time appeared Moxa
Moxa nport 6000-g2 Series
Weaknesses CWE-1287
CPEs cpe:2.3:a:moxa:nport_6000-g2_series:*:*:*:*:*:*:*:*
cpe:2.3:a:moxa:nport_6000-g2_series:1.2.0:*:*:*:*:*:*:*
Vendors & Products Moxa
Moxa nport 6000-g2 Series
References
Metrics cvssV4_0

{'score': 7.1, 'vector': '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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
Moxa
Published
Updated
Nov 2, 2026, 6:13 AM
Reserved
Jun 4, 2026, 8:28 AM
Status
Awaiting Analysis
Published
Jun 16, 2026, 10:16 AM
Modified
Oct 26, 2026, 11:10 AM