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Fencer Intel
high 8.7

CVE-2025-6892 json

An Incorrect Authorization vulnerability has been identified in Moxa’s network security appliances and routers.

published last yr. modified 22d ago also EUVD-2025-34849

cvss
8.7
version 4.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 44%
public exploits
0
none known

Summary

An Incorrect Authorization vulnerability has been identified in Moxa’s network security appliances and routers. A flaw in the API authentication mechanism allows unauthorized access to protected API endpoints, including those intended for administrative functions. This vulnerability can be exploited after a legitimate user has logged in, as the system fails to properly validate session context or privilege boundaries. An attacker may leverage this flaw to perform unauthorized privileged operations. 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

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CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
last yr.

Exploit prediction

0.51% chance of exploitation in the next 30 days, higher than 44% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 4.0 8.7 CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:H
CNA 4.0 8.7 CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/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

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.