CVE-2026-4228

A vulnerability was detected in LB-LINK BL-WR9000 2.4.9. This affects the function sub_458754 of the file /goform/set_wifi. The manipulation results in command injection. It is possible to launch the attack remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

CVSS v3 6.3 MEDIUM
CVSS v2.0 6.5 MEDIUM

6.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact LOW

Scope UNCHANGED

6.5^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:L/Au:S/C:P/I:P/A:P

Exploitability : 8.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication SINGLE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://github.com/glkfc/IoT-Vulnerability/blob/main/LB-LINK/LB-LINK_wlanpswencry%20command%20injection_EN.md	Exploit Third Party Advisory
https://vuldb.com/?ctiid.351151	Permissions Required VDB Entry
https://vuldb.com/?id.351151	Third Party Advisory VDB Entry
https://vuldb.com/?submit.771210	Third Party Advisory VDB Entry

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:lb-link:bl-wr9000_firmware:2.4.9:*:*:*:*:*:*:*

cpe:2.3:h:lb-link:bl-wr9000:-:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-03-16 14:20

Updated : 2026-03-20 18:19

NVD link : CVE-2026-4228

Mitre link : CVE-2026-4228

CVE.ORG link : CVE-2026-4228

JSON object : View

Products Affected

lb-link

bl-wr9000_firmware
bl-wr9000

CWE

CWE-74

Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

CWE-77

Improper Neutralization of Special Elements used in a Command ('Command Injection')

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El proveedor fue contactado con antelaci\u00f3n sobre esta divulgaci\u00f3n, pero no respondi\u00f3 de ninguna manera."}], "lastModified": "2026-03-20T18:19:54.707", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:lb-link:bl-wr9000_firmware:2.4.9:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "0A23AFF5-C85A-4422-933E-02547D9E2859"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:lb-link:bl-wr9000:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "29EAB380-0F6C-4E9A-B7DA-5C36021E4175"}], "operator": "OR"}], "operator": "AND"}], "sourceIdentifier": "cna@vuldb.com"}