CVE-2026-4228

LB-LINK BL-WR9000 set_wifi sub_458754 command injection

CVSS 5.3 MEDIUMEPSS 5.2%CWE-74 CWE-77

Vexday Risk Score

13Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 5.3EPSS 5.2%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

16 Mar 2026Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

Affected products

LB-LINK · BL-WR9000

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References

https://github.com/glkfc/IoT-Vulnerability/blob/main/LB-LINK/LB-LINK_wlanpswencry%20command%20injection_EN.md https://vuldb.com/?ctiid.351151 https://vuldb.com/?id.351151 https://vuldb.com/?submit.771210