CVE-2023-34217Network attack vector

Authenticated arbitrary file deletion via certificate path traversal

Published Aug 17, 2023 · Updated Oct 2, 2024

Path traversal in Moxa industrial router firmware allows remote authenticated users to overwrite or delete arbitrary files through the web service. The certificate-delete function uses an insufficiently validated certificate path for a filesystem operation, allowing traversal outside the intended certificate directory. Low-privileged web-interface access is required, and successful file manipulation can corrupt critical programs or libraries and interrupt or alter device operation.

CVSS severity8.1
High
EPSS probability0.45%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in Moxa industrial router firmware allows remote authenticated users to overwrite or delete arbitrary files through the web service. The certificate-delete function uses an insufficiently validated certificate path for a filesystem operation, allowing traversal outside the intended certificate directory. Low-privileged web-interface access is required, and successful file manipulation can corrupt critical programs or libraries and interrupt or alter device operation.

The record

CVE
CVE-2023-34217
Published
Aug 17, 2023
Updated
Oct 2, 2024
Vendor
Moxa
Product
EDR-G902 Series
Classifications
CWE-22, CAPEC-126, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

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

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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

  1. Affected versionversion=1.0 <=5.7.17

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Moxa · EDR-G902 Seriesversion=1.0 <=5.7.17
Moxa · NAT-102 Seriesversion=1.0 <=1.0.3
Moxa · TN-5900 Seriesversion=1.0 <=3.3
Moxa · EDR-G9010 Seriesversion=1.0 <=2.1
Moxa · EDR-G903 Seriesversion=1.0 <=5.7.15
Moxa · TN-4900 Seriesversion=1.0 <=1.2.4

Published CVSS scores

8.1Moxa Inc.CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CAPEC-126Path Traversal
T1190Exploit Public-Facing Application

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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