CVE-2026-4228 — MEDIUM (6.3)

Vulnerability Description

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 Score

6.3

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

LOW

Integrity

LOW

Availability

LOW

Affected Products

Vendor	Product	Versions
Lb-Link	Bl-Wr9000 Firmware	2.4.9
Lb-Link	Bl-Wr9000	-

Related Weaknesses (CWE)

CWE-74 CWE-77

References

https://github.com/glkfc/IoT-Vulnerability/blob/main/LB-LINK/LB-LINK_wlanpswencrExploitThird Party Advisory
https://vuldb.com/?ctiid.351151Permissions RequiredVDB Entry
https://vuldb.com/?id.351151Third Party AdvisoryVDB Entry
https://vuldb.com/?submit.771210Third Party AdvisoryVDB Entry

FAQ

What is CVE-2026-4228?

CVE-2026-4228 is a vulnerability with a CVSS score of 6.3 (MEDIUM). 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 ...

How severe is CVE-2026-4228?

CVE-2026-4228 has been rated MEDIUM with a CVSS base score of 6.3/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-4228?

Check the references section above for vendor advisories and patch information. Affected products include: Lb-Link Bl-Wr9000 Firmware, Lb-Link Bl-Wr9000.