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Fencer Vulns
high 7.2

CVE-2023-33238 json

Command-injection Vulnerability in Certificate Management

published 2023-08-17 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-37407

cvss
7.2
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.8%
EPSS 0.8% chance of exploitation in 30 days, percentile 57%
public exploits
0
none known

Summary

TN-4900 Series firmware versions v1.2.4 and prior and TN-5900 Series firmware versions v3.3 and prior are vulnerable to the command injection vulnerability. This vulnerability stems from inadequate input validation in the certificate management function, which could potentially allow malicious users to execute remote code on affected devices.

Patch / fix

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
2 y ago

Exploit prediction

0.82% chance of exploitation in the next 30 days, higher than 57% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 7.2 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

  • Moxa TN-5900 Series
  • Moxa TN-4900 Series
  • Moxa EDR-810 Series
  • Moxa EDR-G902 Series
  • Moxa EDR-G903 Series
  • Moxa EDR-G9010 Series
  • Moxa NAT-102 Series
  • moxa tn-5900
  • moxa tn-4900
  • moxa edr-810
  • moxa edr-g902
  • moxa edr-g9010
  • moxa nat-102

Classification

Weakness
  • CWE-78 Improper Neutralization of Special Elements used in an OS Command
  • CWE-77 Improper Neutralization of Special Elements used in a Command

References

Sources

Fencer Vulns 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.