CVE-2026-4227

A security vulnerability has been detected in LB-LINK BL-WR9000 2.4.9. The impacted element is the function sub_44D844 of the file /goform/get_hidessid_cfg. The manipulation leads to buffer overflow. It is possible to initiate the attack remotely. The exploit has been disclosed publicly 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_HideSSID%20stack%20overflow_EN.md Exploit Third Party Advisory
https://vuldb.com/?ctiid.351150 Permissions Required VDB Entry
https://vuldb.com/?id.351150 Third Party Advisory VDB Entry
https://vuldb.com/?submit.771209 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, 18:20

Type Values Removed Values Added
CWE CWE-125
References () https://github.com/glkfc/IoT-Vulnerability/blob/main/LB-LINK/LB-LINK_HideSSID%20stack%20overflow_EN.md - () https://github.com/glkfc/IoT-Vulnerability/blob/main/LB-LINK/LB-LINK_HideSSID%20stack%20overflow_EN.md - Exploit, Third Party Advisory
References () https://vuldb.com/?ctiid.351150 - () https://vuldb.com/?ctiid.351150 - Permissions Required, VDB Entry
References () https://vuldb.com/?id.351150 - () https://vuldb.com/?id.351150 - Third Party Advisory, VDB Entry
References () https://vuldb.com/?submit.771209 - () https://vuldb.com/?submit.771209 - Third Party Advisory, VDB Entry
Summary
  • (es) Se ha detectado una vulnerabilidad de seguridad en LB-LINK BL-WR9000 2.4.9. El elemento afectado es la función sub_44D844 del archivo /goform/get_hidessid_cfg. La manipulación conduce a un desbordamiento de búfer. Es posible iniciar el ataque remotamente. El exploit ha sido divulgado públicamente y puede ser utilizado. Se contactó con el proveedor con antelación sobre esta divulgación, pero no respondió de ninguna manera.
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:*:*:*:*:*:*:*

16 Mar 2026, 14:20

Type Values Removed Values Added
New CVE

Information

Published : 2026-03-16 14:20

Updated : 2026-03-20 18:20


NVD link : CVE-2026-4227

Mitre link : CVE-2026-4227

CVE.ORG link : CVE-2026-4227


JSON object : View

Products Affected

lb-link

  • bl-wr9000
  • bl-wr9000_firmware
CWE
CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer

CWE-120

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

CWE-125

Out-of-bounds Read