CVE-2025-6950 json
An Use of Hard-coded Credentials vulnerability has been identified in Moxa’s network security appliances and routers.
published 2025-10-17 12 mo ago modified 2026-10-18 21 d ago also EUVD-2025-34856
- cvss
- 9.9
- version 4.0, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.6%
- EPSS 0.6% chance of exploitation in 30 days, percentile 48%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- Moxa EDR-G9010 Series 3.21
- Moxa EDR-8010 Series 3.21
- Moxa EDF-G1002-BP Series 3.21
- Moxa TN-4900 Series 3.21
- Moxa NAT-102 Series 3.21
- Moxa NAT-108 Series 3.21
- Moxa OnCell G4302-LTE4 Series 3.21.0
CISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- total
- Assessed
- 12 mo ago
Exploit prediction
0.60% chance of exploitation in the next 30 days, higher than 48% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 9.9 | 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 |
| CNA | 4.0 | 9.9 | 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
Affected products
- Moxa EDR-G9010 Series
- Moxa EDR-8010 Series
- Moxa EDF-G1002-BP Series
- Moxa TN-4900 Series
- Moxa NAT-102 Series
- Moxa NAT-108 Series
- Moxa OnCell G4302-LTE4 Series
Classification
- Weakness
-
- CWE-798 Use of Hard-coded Credentials
References
Sources
- CVE List CVE-2025-6950
- NVD CVE-2025-6950
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