CVE-2025-1680Network attack vector

Administrator-level link forgery via trusted Host header

Published Oct 23, 2025 · Updated Oct 23, 2025

Host header injection in Moxa TN-4500A, TN-5500A, TN-G4500, and TN-G6500 Series allows remote authenticated users to forge links. The affected web service accepts a specially crafted HTTP Host value as trusted data, but Moxa has not disclosed the exact handler or response path that consumes it. Administrative access and passive victim interaction are required, and Moxa reports no direct or subsequent confidentiality, integrity, or availability loss.

CVSS severity0.0
None
EPSS probability0.17%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Host header injection in Moxa TN-4500A, TN-5500A, TN-G4500, and TN-G6500 Series allows remote authenticated users to forge links. The affected web service accepts a specially crafted HTTP Host value as trusted data, but Moxa has not disclosed the exact handler or response path that consumes it. Administrative access and passive victim interaction are required, and Moxa reports no direct or subsequent confidentiality, integrity, or availability loss.

The record

CVE
CVE-2025-1680
Published
Oct 23, 2025
Updated
Oct 23, 2025
Vendor
Moxa
Product
TN-4500A Series
Classifications
CWE-349, CAPEC-154
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Oct 23, 2025CVE publishedPublication date reported by the CVE source.
  2. Oct 23, 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 <=3.13

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Moxa · TN-4500A Seriesversion=1.0 <=3.13
Moxa · TN-5500A Seriesversion=1.0 <=3.13
Moxa · TN-G6500 Seriesversion=1.0 <=5.5
Moxa · TN-G4500 Seriesversion=1.0 <=5.5

Published CVSS scores

0.0Moxa Inc.CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:N/VI:N/VA:N/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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

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

Weakness, pattern, technique

CWE-349Acceptance of Extraneous Untrusted Data With Trusted Data
CAPEC-154Resource Location Spoofing

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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