Skip to content
Fencer Intel
critical 9.9

CVE-2025-6950 json

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

published last yr. modified 22d 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

Is CVE-2025-6950 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

Check with Fencer

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
total
Assessed
last yr.

Exploit prediction

0.60% chance of exploitation in the next 30 days, higher than 48% of all scored CVEs (FIRST EPSS, 2026-11-09).

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

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.