# CVE-2025-2026

## Summary

- **CVE ID:** CVE-2025-2026
- **Severity:** HIGH
- **CVSS Score:** 7.1 (CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N)
- **CWE:** CWE-170
- **Published:** Dec 31, 2025
- **Last Modified:** Mar 12, 2026

## Description

The NPort 6100-G2/6200-G2 Series is affected by a high-severity vulnerability (CVE-2025-2026) that allows remote attackers to execute a null byte injection through the device’s web API. This may lead to an unexpected device reboot and result in a denial-of-service (DoS) condition.

An authenticated remote attacker with web read-only privileges can exploit the vulnerable API to inject malicious input. Successful exploitation may cause the device to reboot, disrupting normal operations and causing a temporary denial of service.

## Affected Products

- Moxa — NPort 6100-G2/6200-G2 Series (1.0.0)
- Moxa — NPort 6100-G2/6200-G2 Series (1.1.0)

## References

- [CNA](https://www.moxa.com/en/support/product-support/security-advisory/mpsa-251731-cve-2025-1977-cve-2025-2026-multiple-vulnerabilities-in-nport-6100-g2-6200-g2-series)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.40%
- **EPSS Percentile:** 33.6

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