CVE-2026-4228

MEDIUM

LB-LINK BL-WR9000 set_wifi sub_458754 command injection

Title source: cna

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.

References (4)

Core 4

Core References

Vdb Entry, Technical Description vdb-entry technical-description

VDB-351151 | LB-LINK BL-WR9000 set_wifi sub_458754 command injection

https://vuldb.com/?id.351151

Signature, Permissions Required signature permissions-required

VDB-351151 | CTI Indicators (IOB, IOC, TTP, IOA)

https://vuldb.com/?ctiid.351151

Third Party Advisory third-party-advisory

Submit #771210 | LB-LINK BL-WR9000 V2.4.9 Command Injection

https://vuldb.com/?submit.771210

Exploit exploit

https://github.com/glkfc/IoT-Vulnerability/blob/main/LB-LINK/LB-LINK_wlanpswencry%20command%20injection_EN.md

View Exploit ZIP pw:eip

Scores

CVSS v3 6.3

EPSS 0.0517

EPSS Percentile 91.3%

Attack Vector NETWORK

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

CISA SSVC

Vulnrichment

Exploitation poc

Automatable no

Technical Impact partial

Details

CWE

CWE-74 CWE-77

Status published

Products (2)

LB-LINK/BL-WR9000 2.4.9

lb-link/bl-wr9000_firmware 2.4.9

Published Mar 16, 2026

Tracked Since Mar 16, 2026