Home/CVE/A weakness has been identified in D-Link DIR-823X 250416. This vulnerability affects the function sub_420688 of the file
CVE

CVE-2026-2142

A weakness has been identified in D-Link DIR-823X 250416. This vulnerability affects the function sub_420688 of the file

A weakness has been identified in D-Link DIR-823X 250416. This vulnerability affects the function sub_420688 of the file /goform/set_qos. Executing a manipulation can lead to os command injection.

The attack can be executed remotely. The exploit has been made available to the public and could be used for attacks.

HIGH · CVSS 7.2 EPSS 0.00115
Act now
  • Public exploit or PoC is available
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')
CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
▤

Affected Products & Versions

1
dlink dir-823x firmwareall versions
⚠

Public Exploits & PoCs

1
pocgithub.com · issues/29github.com
▣

Scoring & Timeline

7.2
HIGH · CVSS v3.1 · cna@vuldb.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD08 Feb 2026 · 08:15 AM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
SSVC triage · cisa-vulnrichment
Exploitation
poc
Automatable
no
Technical impact
total
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
🔗

References & Sources

4
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://vuldb.com/?ctiid.344777Permissions RequiredVDB Entry
https://vuldb.com/?id.344777Third Party AdvisoryVDB Entry
https://vuldb.com/?submit.747428Third Party AdvisoryVDB Entry
https://www.dlink.com/Product
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