None 0.0Published Oct 23, 2025

CVE-2025-1680An acceptance of extraneous untrusted data with trusted data vulnerability has been identified in Moxa’s Ethernet switches, which allows attackers with administrative privileges to manipulate HTTP Ho…

Updated under an hour ago (Oct 26, 2026, 8:00 AM ET)

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It affects Moxa TN-4500A Series and 3 other products. Add what you run to find out whether that includes you.

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Every CVE for Moxa TN-4500A Series

Exploited in the last 30 days

An acceptance of extraneous untrusted data with trusted data vulnerability has been identified in Moxa’s Ethernet switches, which allows attackers with administrative privileges to manipulate HTTP Host headers by injecting a specially crafted Host header into HTTP requests sent to an affected device’s web service. This vulnerability is classified as Host Header Injection, where invalid Host headers can manipulate to redirect users, forge links, or phishing attacks. There is no impact to the confidentiality, integrity, and availability of the affected device; no loss of confidentiality, integrity, and availability within any subsequent systems.

CVSS: 0.0 NONE (v4.0, CNA)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
Weakness (CWE): CWE-349
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Moxa
NVD analysis: Deferred
Record last updated: Oct 23, 2025
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Moxa TN-4500A Series moxa:tn_4500a_series (from the name)	from 1.0 through 3.13; 4.0 not affected	CNA record
Moxa TN-5500A Series moxa:tn_5500a_series (from the name)	from 1.0 through 3.13; 4.0 not affected	CNA record
Moxa TN-G4500 Series moxa:tn_g4500_series (from the name)	from 1.0 through 5.5; 5.5.255 not affected	CNA record
Moxa TN-G6500 Series moxa:tn_g6500_series (from the name)	from 1.0 through 5.5; 5.5.255 not affected	CNA record

References

https://www.moxa.com/en/support/product-support/security-advisory/mpsa-257421-cve-2025-1679,-cve-2025-1680-stored-cross-site-scripting-(xss)-and-host-header-injection-vulnerabilities-invendor-advisory
https://www.hackrtu.com/blog/cg-technical-en-003/technical-description

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.