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Public proof of conceptFix available

CVE-2022-4616

A public proof of concept exists; no exploitation attested.

  • Published2023-01-13
  • Fixed in1.24
  • WeaknessCWE-77

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

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.

Timeline

dates in UTC
  1. 2023-01-1300:15CVE publishedNVD
  2. 2026-10-2319:23First public proof of conceptPoC-in-GitHub

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2022-4616?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2022-4616?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD
Deltaww dx-3021l9 firmwareversion to verify
BranchAffectedFixed in
1.24< 1.241.24

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Vendor advisories

  • ICSA-22-354-05 CISA1 known affected

    Delta 4G Router DX-3021

    4G Router DX-3021: DX-3021L9 versions prior to V1.24

Full record on NVD

Fix

  1. Update Deltaww dx-3021l9 firmware to 1.24
  2. Mitigation from the vendor CISA ICSA-22-354-05 · 1 productDelta fixed this vulnerability and released a new patch, which is available on the Delta download center.

Advisories and patches

Detection

read 2026-10-23 19:23 UTC
Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
1 repository, unverifiedahanel13/CVE-2022-4616-POC
PoC-in-GitHub

Sources

  • CISA-ADPSSVC decisionnone2025-01-16
  • OpenCVESSVC decisionnone—
  • CNACVSS 3.17.2read 2026-10-23
  • NVDCVSS 3.19.1read 2026-10-23
  • CNAweakness (CWE)CWE-77read 2026-10-23
  • FIRST EPSSEPSS score4.8 %2026-10-23
  • PoC-in-GitHubproof of concept1read 2026-10-23

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Published
2023-01-13
Last Modified
2026-06-17
NVD status
Modified

Frequently asked questions

What is CVE-2022-4616?

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.

Is CVE-2022-4616 actively exploited?

Active exploitation of CVE-2022-4616 has not been confirmed. Its EPSS score was 4.8% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2022-4616?

CVE-2022-4616 has a CVSS v3 base score of 9.1 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H.

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