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Fencer Intel
critical 9.3

CVE-2025-6949 json

An Execution with Unnecessary Privileges vulnerability has been identified in Moxa’s network security appliances and routers.

published last yr. modified 22d ago also EUVD-2025-34857

cvss
9.3
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 45%
public exploits
0
none known

Summary

An Execution with Unnecessary Privileges vulnerability has been identified in Moxa’s network security appliances and routers. A critical authorization flaw in the API allows an authenticated, low-privileged user to create a new administrator account, including accounts with usernames identical to existing users. In certain scenarios, this vulnerability could allow an attacker to gain full administrative control over the affected device, leading to potential account impersonation. 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
yes
Technical impact
total
Assessed
last yr.

Exploit prediction

0.53% chance of exploitation in the next 30 days, higher than 45% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 4.0 9.3 CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:H
CNA 4.0 9.3 CVSS:4.0/AV:N/AC:L/AT:N/PR:L/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-250 Execution with Unnecessary Privileges

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.