CVE-2025-2026 Details
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.
A high-severity null byte injection vulnerability has been identified in the NPort 6100-G2/6200-G2 Series, allowing authenticated remote attackers with web read-only privileges to exploit the device's web API. This exploitation can cause the device to reboot unexpectedly, creating a denial-of-service condition by disrupting normal operations.
Users are advised to contact Moxa Technical Support for the security patch (version 1.1.0) to address this vulnerability.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Dec 31, 2025CISA-ADP
Assessed Dec 31, 2025References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| 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 | [email protected] | AdvisoryBundleRemedyVendor |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-170 | Improper Null Termination | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| Moxa NPort 6100-G2 | 1.0.0 (semver) |
CPE
Remediation
| |
| Moxa NPort 6200-G2 | All versions |
CPE
Remediation
| |
Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Dec 31, 2025 | New CVE Received | [email protected] |
Volerion