TI-2026-09293 Aliases CVE-2026-10825 GHSA-9269-mhf5-vfqw

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

LOW 31CWE-1287Published 2026-06-16 · Updated 2026-11-02

Key facts

Attack vector: Network
Privileges required: Low
User interaction: None
Attack complexity: Low
Attack requirements: None
Impact type: —
Confidentiality · integrity · availability: None · None · High
Fix status: Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.0024 15th percentileScored 2026-11-07

Fix Fixed NPort 6000-G2 Series (Moxa): 1.2.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Moxa	NPort 6000-G2 Series	1.0 – 1.1.0	1.2.0	Patch available	CNA

NPort 6000-G2 Series VendorMoxa Affected 1.0 – 1.1.0 Fixed in 1.2.0 Patch available CNA

Remediation

Fix · CNA NPort 6000-G2 Series (Moxa) Fixed in 1.2.0

Timeline

2026-10-02 Threatist record created from CVE-2026-10825
2026-10-03 Alias added: GHSA-9269-mhf5-vfqw

References

Advisory 1

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

TI-2021-17455 Hard-coded credentials in Moxa MXView Series CVSS 3.1CRITICAL 9.8
TI-2010-04465 Stack-based buffer overflow in a certain ActiveX control in MediaDBPlayback.DLL 2.2.0.5… CVSS 2.0HIGH 10.0
TI-2022-19087 A denial of service vulnerability exists in the web server functionality of Moxa SDS-3008… CVSS 3.1HIGH 7.5
TI-2016-07634 Missing brute-force protection in Moxa NPort CVSS 3.1CRITICAL 9.8
TI-2021-17457 Cleartext transmission of sensitive information in Moxa MXView Series CVSS 3.1HIGH 7.5
TI-2022-19326 Information disclosure in Moxa SDS-3008 Series Industrial Ethernet Switch CVSS 3.1MEDIUM 5.3

See all 328 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences