HOMEVULNERABILITIESCVE-2023-34217
HIGH

CVE-2023-34217

CWE-22Published: August 17, 2023· Updated: Jun 17, 2026

8.1
CVSS v3.1

Official Description

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 insufficient input validation in the certificate-delete function, which could potentially allow malicious users to delete arbitrary files.

NVD Source

Technical Analysis

CVE-2023-34217 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.1.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

Affected Vendors & Products

moxa4 product(s)
tn-5900 firmwaretn-5900tn-4900 firmwaretn-4900
Source: NVD CPE · 4 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttps://www.moxa.com/en/support/product-support/security-advisory/mpsa-230402-tn-5900-and-tn-4900-series-web-server-multiple-vulnerabilities
PATCHhttps://www.moxa.com/en/support/product-support/security-advisory/mpsa-230402-tn-5900-and-tn-4900-series-web-server-multiple-vulnerabilities

All References (2)

→
https://www.moxa.com/en/support/product-support/security-advisory/mpsa-230402-tn-5900-and-tn-4900-series-web-server-multiple-vulnerabilitiesPatch · Vendor Advisory
→
https://www.moxa.com/en/support/product-support/security-advisory/mpsa-230402-tn-5900-and-tn-4900-series-web-server-multiple-vulnerabilitiesPatch · Vendor Advisory

Quick Facts

CVE IDCVE-2023-34217
CVSS Score8.1 / 10
SeverityHIGH
WeaknessCWE-22
CISA KEVNo
Affected1 vendor(s)
PublishedAug 17, 2023

Related CVEs (CWE-22)

CVE-2008-2403
10.0
CVE-2009-0841
10.0
CVE-2008-0405
10.0
CVE-2008-2241
10.0
CVE-2008-4489
10.0
CVE-2009-1161
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2023-34217 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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