CVE-2025-1977

HIGH

NPort 6100-G2/6200-G2 Series - Privilege Escalation

Title source: llm
STIX 2.1

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.

Scores

CVSS v4 7.7
EPSS 0.0009
EPSS Percentile 26.1%
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-250
Status published
Products (2)
Moxa/NPort 6100-G2/6200-G2 Series 1.0.0
Moxa/NPort 6100-G2/6200-G2 Series 1.1.0
Published Dec 31, 2025
Tracked Since Feb 18, 2026