D-Link DIR-823X 250416 /goform/set_qos sub_420688 os command injection

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.8$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in D-Link DIR-823X 250416. This issue affects the function sub_420688 of the file /goform/set_qos. The manipulation leads to os command injection. This vulnerability is uniquely identified as CVE-2026-2142. The attack is possible to be carried out remotely. Moreover, an exploit is present.

Detailsinfo

A vulnerability was found in D-Link DIR-823X 250416 and classified as critical. This issue affects the function sub_420688 of the file /goform/set_qos. The manipulation with an unknown input leads to a os command injection vulnerability. Using CWE to declare the problem leads to CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. Impacted is confidentiality, integrity, and availability.

The advisory is shared at github.com. The identification of this vulnerability is CVE-2026-2142. The exploitation is known to be easy. The attack may be initiated remotely. Additional levels of successful authentication are required for exploitation. Technical details as well as a public exploit are known. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 02/09/2026). MITRE ATT&CK project uses the attack technique T1202 for this issue.

The exploit is available at github.com. It is declared as proof-of-concept.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at EUVD (EUVD-2026-5806) and CERT Bund (WID-SEC-2026-0340). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Affected

  • D-LINK Router

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 7.2
VulDB Meta Temp Score: 6.8

VulDB Base Score: 7.2
VulDB Temp Score: 6.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 7.2
CNA Vector: 🔒

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Os command injection
CWE: CWE-78 / CWE-77 / CWE-74
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

02/06/2026 Advisory disclosed
02/06/2026 +0 days VulDB entry created
02/09/2026 +3 days VulDB entry last update

Sourcesinfo

Vendor: dlink.com

Advisory: github.com
Status: Not defined

CVE: CVE-2026-2142 (🔒)
GCVE (CVE): GCVE-0-2026-2142
GCVE (VulDB): GCVE-100-344777
EUVD: 🔒
CERT Bund: WID-SEC-2026-0340 - D-LINK DIR-823X und DWR-M921 Router: Mehrere Schwachstellen ermöglichen Ausführen von beliebigem Programmcode mit Administratorrechten

scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 02/06/2026 22:13
Updated: 02/09/2026 15:47
Changes: 02/06/2026 22:13 (56), 02/08/2026 09:47 (31), 02/09/2026 06:56 (1), 02/09/2026 15:47 (7)
Complete: 🔍
Submitter: 942384053
Cache ID: 216::103

Submitinfo

Accepted

  • Submit #747428: D-Link DIR-823X 250416 OS Command Injection (by 942384053)

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Discussion

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