CVE-2022-4616 — The webserver in Delta DX-3021 versions prior to 1

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.

01What is this vulnerability?

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.

02Affected products

Vendor	Product	Versions
Delta Industrial Automation	4G Router DX	3021 — 0

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2023-01-12T23:54:02.112Z
• Last modified: 2025-01-16T22:01:59.638Z

09References

• www.cisa.gov — https://www.cisa.gov/uscert/ics/advisories/icsa-22-354-05
• downloadcenter.deltaww.com — https://downloadcenter.deltaww.com/en-US/DownloadCenter?v=1&CID=06&itemID=060308…