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    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.

    Published:Mar 16, 2026
    Last Modified:Mar 24, 2026
    EPS:Mar 16, 2026
    EPSS Score:0.00119
    CVSS Score:8.8

    Affected Products

    Vendor
    Lb-link
    Product
    Bl-wr9000
    Vendor
    Lb-link
    Product
    Bl-wr9000 Firmware

    Exploits

    https://github.com/glkfc/IoT-Vulnerability/blob/main/LB-LINK/LB-LINK_HideSSID%20stack%20overflow_EN.md

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High