CVE-2025-1977 Details
Description
The NPort 6100-G2/6200-G2 Series is affected by an execution with unnecessary privileges vulnerability (CVE-2025-1977) that allows an authenticated user with read-only access to perform unauthorized configuration changes through the MCC (Moxa CLI Configuration) tool. The issue can be exploited remotely over the network with low-attack complexity and no user interaction but requires specific system conditions or configurations to be present. Successful exploitation may result in changes to device settings that were not intended to be permitted for the affected user role, potentially leading to a high impact on the confidentiality, integrity, and availability of the device. No impact on other systems has been identified.
A vulnerability allowing execution with unnecessary privileges has been identified in the Moxa NPort 6100-G2/6200-G2 Series. This vulnerability allows an authenticated user with read-only access to make unauthorized configuration changes using the Moxa CLI Configuration (MCC) tool. The issue can be exploited remotely over the network, with low attack complexity and no user interaction required, but it does depend on specific system conditions or configurations. Successful exploitation could lead to unintended changes in device settings for the affected user role, potentially causing significant disruption to the device's normal operations. No impact on other systems has been reported.
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:
VolerionCVSS 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-250 | Execution with Unnecessary Privileges | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| Moxa NPort 6100-G2 | v1.0.0 (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] |