The NPort 6100-G2/6200-G2 Series is affected by an execution with unnecessary privileges…
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- Present
- Impact type
- Privilege escalation
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-250.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA NPort 6100-G2/6200-G2 Series (Moxa) Fixed in 1.1.0
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Advisory ·
Moxa NPort 6100-G2/6200-G2 Series — moxa.com/en/support/product-support/security-advisory/mpsa-…
2 records Highest priority Priority LOW 2 LOW
Other records, highest priority first
- TI-2025-01764 The NPort 6100-G2/6200-G2 Series is affected by a high-severity vulnerability…Priority LOW 37
Timeline
- 2026-10-02 Threatist record created from CVE-2025-1977
- 2026-10-03 Alias added: GHSA-x7hg-qr55-cgh5
References
More Moxa vulnerabilities
- TI-2021-17455 Hard-coded credentials in Moxa MXView Series CVSS 3.1CRITICAL 9.8
- TI-2010-04465 Stack-based buffer overflow in a certain ActiveX control in MediaDBPlayback.DLL 2.2.0.5… CVSS 2.0HIGH 10.0
- TI-2022-19087 A denial of service vulnerability exists in the web server functionality of Moxa SDS-3008… CVSS 3.1HIGH 7.5
- TI-2016-07634 Missing brute-force protection in Moxa NPort CVSS 3.1CRITICAL 9.8
- TI-2021-17457 Cleartext transmission of sensitive information in Moxa MXView Series CVSS 3.1HIGH 7.5
- TI-2022-19326 Information disclosure in Moxa SDS-3008 Series Industrial Ethernet Switch CVSS 3.1MEDIUM 5.3
Sources
- CVE-2025-1977 · CVE Program
- CVE-2025-1977 · NVD
- FIRST EPSS
- GHSA-x7hg-qr55-cgh5 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences