CVE-2025-15017

Privileged access via enabled UART debug interface

Published Dec 31, 2025 · Updated Dec 31, 2025

Active debug code in the UART interface of Moxa NPort serial device servers 1.0 allows physically proximate attackers to gain privileged access. The UART interface exposes enabled internal debug functionality without authentication, letting a direct connection execute privileged operations and access sensitive device resources. Physical access to the appliance is required; the reported impact is confined to the affected device, with no identified impact on external or dependent systems.

CVSS severity7.0
High
EPSS probability0.28%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Active debug code in the UART interface of Moxa NPort serial device servers 1.0 allows physically proximate attackers to gain privileged access. The UART interface exposes enabled internal debug functionality without authentication, letting a direct connection execute privileged operations and access sensitive device resources. Physical access to the appliance is required; the reported impact is confined to the affected device, with no identified impact on external or dependent systems.

The record

CVE
CVE-2025-15017
Published
Dec 31, 2025
Updated
Dec 31, 2025
Vendor
Moxa
Product
NPort IA5000-G2 Series
Classifications
CWE-489, CAPEC-121, T1200
Attack vector
physical
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 31, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 31, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1.0

What conditions does exploitation require?

Attack vectorphysical
Required privilegesunauthenticated

What is affected?

Moxa · NPort IA5000-G2 Seriesversion=1.0
Moxa · NPort IA5000 Seriesversion=1.0
Moxa · NPort IA5000A Seriesversion=1.0
Moxa · NPort 5600 Seriesversion=1.0
Moxa · NPort 5600-DT Seriesversion=1.0
Moxa · NPort 5000AI-M12 Seriesversion=1.0
Moxa · NPort 5200 Seriesversion=1.0
Moxa · NPort 5100A Seriesversion=1.0
Moxa · NPort 5400 Seriesversion=1.0
Moxa · NPort 5100 Seriesversion=1.0
Moxa · NPort 5200A Seriesversion=1.0

Published CVSS scores

7.0MoxaCVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorphysical
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-489Active Debug Code
CAPEC-121Exploit Non-Production Interfaces
T1200Hardware Additions

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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