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PatchSiren cyber security CVE debrief

CVE-2026-10825 Moxa CVE debrief

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.

Vendor
Moxa
Product
NPort 6000-G2 Series
CVSS
HIGH 7.1
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-16
Original CVE updated
2026-06-16
Advisory published
2026-06-16
Advisory updated
2026-06-16

Who should care

Users of WebSocket API implementations that do not properly validate and handle JSON-based requests should be concerned about this vulnerability.

Technical summary

The vulnerability has a CVSS score of 7.1 and is considered HIGH severity. It can be exploited by a low-privileged authenticated attacker sending a specially crafted request.

Defensive priority

HIGH

Recommended defensive actions

  • Implement proper validation and handling of JSON-based requests in the WebSocket API.
  • Restrict access to the WebSocket API to only trusted users and networks.
  • Monitor WebSocket API traffic for suspicious activity.

Evidence notes

The CVE record was published on 2026-06-16T10:16:26.670Z and has not been modified since then. The vulnerability is associated with CWE-1287.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-10825 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-10825

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-10825 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-10825

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

  • Source reference

    Unverified legacy reference

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

    [email protected]

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.