PT-2026-25638 · Lb Link · Lb-Link Bl-Wr9000

Jfkk + 1 · Published 2026-03-04 · Updated 2026-03-16 · CVE-2026-4228

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions LB-LINK BL-WR9000 version 2.4.9

Description A flaw exists in the sub 458754 function within the /goform/set wifi file. This allows for command injection, which can be exploited remotely. The exploit is publicly available. The vendor was notified but did not respond.

Recommendations Disable or restrict access to the /goform/set wifi file to prevent exploitation of the sub 458754 function.

Exploit

Fix

Command Injection

Special Elements Injection

Weakness Enumeration

CWE-77

CWE-74

Related Identifiers

BDU:2026-04240

CVE-2026-4228

Affected Products

Lb-Link Bl-Wr9000

References · 8

• 🔥 https://github.com/glkfc/IoT-Vulnerability/blob/main/LB-LINK/LB-LINK_wlanpswencry%20command%20injection_EN.md · Exploit
• https://bdu.fstec.ru/vul/2026-04240 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-4228 · Security Note
• https://vuldb.com/?submit.771210 · Note
• https://twitter.com/CVEnew/status/2033583686810210511 · Twitter Post
• https://vuldb.com/?ctiid.351151 · Note
• https://vuldb.com/?id.351151 · Note
• https://t.me/CVEtracker/47524 · Telegram Post