Description
A denial-of-service vulnerability exists in NPort devices because of improper access control on the command port. The command interface does not properly validate whether a sender is associated with a valid data port session before accepting break signal commands. A remote attacker with network access can send crafted requests to disrupt serial communication for an active user session.
Published: 2026-06-16
Score: 6.9 Medium
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

No analysis available yet.

Remediation

Vendor Solution

Please refer to the security advisory: https://www.moxa.com/en/support/product-support/security-advisory/mpsa-262370-cve-2026-10831-improper-authorization-vulnerability-in-serial-device-servers

Tracking

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Advisories

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History

Tue, 16 Jun 2026 16:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

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


Tue, 16 Jun 2026 15:00:00 +0000

Type Values Removed Values Added
Description A denial-of-service vulnerability exists in NPort devices because of improper access control on the command port. The command interface does not properly validate whether a sender is associated with a valid data port session before accepting break signal commands. A remote attacker with network access can send crafted requests to disrupt serial communication for an active user session.
Title Improper Authorization of Break Signal Commands in Devices
Weaknesses CWE-862
References
Metrics cvssV4_0

{'score': 6.9, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:L'}


Subscriptions

No data.

cve-icon MITRE

Status: PUBLISHED

Assigner: Moxa

Published:

Updated: 2026-06-16T15:27:28.093Z

Reserved: 2026-06-04T10:11:26.724Z

Link: CVE-2026-10831

cve-icon Vulnrichment

Updated: 2026-06-16T15:27:24.699Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-06-16T15:16:34.490

Modified: 2026-06-16T15:36:54.090

Link: CVE-2026-10831

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses