# CVE-2025-1680

## Summary

- **CVE ID:** CVE-2025-1680
- **Severity:** UNKNOWN
- **CVSS Score:** 0 (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)
- **CWE:** CWE-349
- **Published:** Oct 23, 2025
- **Last Modified:** Mar 13, 2026

## Description

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.

## Affected Products

- Moxa — TN-4500A Series (1.0)
- Moxa — TN-4500A Series (4.0)
- Moxa — TN-5500A Series (1.0)
- Moxa — TN-5500A Series (4.0)
- Moxa — TN-G4500 Series (1.0)
- Moxa — TN-G4500 Series (5.5.255)
- Moxa — TN-G6500 Series (1.0)
- Moxa — TN-G6500 Series (5.5.255)

## References

- [CNA](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-in)
- [CNA](https://www.hackrtu.com/blog/cg-technical-en-003/)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.17%
- **EPSS Percentile:** 6.8

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-11._