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.
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

20 Mar 2026, 18:19

Type Values Removed Values Added
First Time Lb-link bl-wr9000
Lb-link bl-wr9000 Firmware
Lb-link
CPE cpe:2.3:h:lb-link:bl-wr9000:-:*:*:*:*:*:*:*
cpe:2.3:o:lb-link:bl-wr9000_firmware:2.4.9:*:*:*:*:*:*:*
Summary
  • (es) Una vulnerabilidad fue detectada en LB-LINK BL-WR9000 2.4.9. Esto afecta a la función sub_458754 del archivo /goform/set_wifi. La manipulación resulta en inyección de comandos. Es posible lanzar el ataque de forma remota. El exploit ahora es público y puede ser utilizado. El proveedor fue contactado con antelación sobre esta divulgación, pero no respondió de ninguna manera.
References () https://github.com/glkfc/IoT-Vulnerability/blob/main/LB-LINK/LB-LINK_wlanpswencry%20command%20injection_EN.md - () https://github.com/glkfc/IoT-Vulnerability/blob/main/LB-LINK/LB-LINK_wlanpswencry%20command%20injection_EN.md - Exploit, Third Party Advisory
References () https://vuldb.com/?ctiid.351151 - () https://vuldb.com/?ctiid.351151 - Permissions Required, VDB Entry
References () https://vuldb.com/?id.351151 - () https://vuldb.com/?id.351151 - Third Party Advisory, VDB Entry
References () https://vuldb.com/?submit.771210 - () https://vuldb.com/?submit.771210 - Third Party Advisory, VDB Entry

16 Mar 2026, 14:20

Type Values Removed Values Added
New CVE

Information

Published : 2026-03-16 14:20

Updated : 2026-04-29 01:00


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
  • bl-wr9000_firmware
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')