The webserver in Delta DX-3021 versions prior to 1.24 is vulnerable to command injection through the network diagnosis page.

published 2023-01-12 3 y ago modified 2026-06-17 4 mo ago also EUVD-2022-51947

cvss: 7.2; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 4.8%; EPSS 4.8% chance of exploitation in 30 days, percentile 92%
public exploits: 0; none known

The webserver in Delta DX-3021 versions prior to 1.24 is vulnerable to command injection through the network diagnosis page. This vulnerability could allow a remote unauthenticated user to add files, delete files, and change file permissions.

Patch / fix

fixed in 1

Delta Industrial Automation 4G Router DX-3021 1.24

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-22-354-05 updated 2022-12-20 cvss 7.2

Delta 4G Router DX-3021

Delta Electronics DX-3021L9 < 1.24
affected: mitigation “Delta fixed this vulnerability and released a new patch, which is available on the Delta download center.” downloadcenter.deltaww.com

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: total
Assessed: 21 mo ago (2025-01-16)

Exploit prediction

4.81% chance of exploitation in the next 30 days, higher than 92% 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	9.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

Affected products

Delta Industrial Automation 4G Router DX-3021

Classification

Weakness

CWE-77 Improper Neutralization of Special Elements used in a Command

References

downloadcenter.deltaww.com /en-US/DownloadCenter?v=1&CID=06&itemID=060308&downloadID=DX&dataType=12&sort_expr=cdate&sort_dir=DESC
product, vendor-advisory
cisa.gov /uscert/ics/advisories/icsa-22-354-05
third-party-advisory, us-government-resource

Sources

CVE List CVE-2022-4616
NVD CVE-2022-4616

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.

Summary