CVE-2023-34215Network attack vector

Authenticated OS command injection via certificate-generation input

Published Aug 17, 2023 · Updated Oct 28, 2024

OS command injection in Moxa TN-5900 Series firmware 3.3 and earlier allows remote authenticated users to execute arbitrary commands. The certification-generation function insufficiently validates attacker-controlled input before passing it to an operating-system command. Administrative web-interface privileges are required; successful exploitation permits command execution on the affected router.

CVSS severity7.2
High
EPSS probability0.74%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

OS command injection in Moxa TN-5900 Series firmware 3.3 and earlier allows remote authenticated users to execute arbitrary commands. The certification-generation function insufficiently validates attacker-controlled input before passing it to an operating-system command. Administrative web-interface privileges are required; successful exploitation permits command execution on the affected router.

The record

CVE
CVE-2023-34215
Published
Aug 17, 2023
Updated
Oct 28, 2024
Vendor
Moxa
Product
TN-5900 Series
Classifications
CWE-77, CWE-78, T1059
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Aug 17, 2023CVE publishedPublication date reported by the CVE source.
  2. Oct 28, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1.0 <=3.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Moxa · TN-5900 Seriesversion=1.0 <=3.3

Published CVSS scores

7.2Moxa Inc.CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')
CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1059Command and Scripting Interpreter

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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