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    CVE-2026-2909

    A vulnerability was detected in Tenda HG9 300001138. This affects an unknown part of the file /boaform/formPing of the component Diagnostic Ping Endpoint. Performing a manipulation of the argument pingAddr results in stack-based buffer overflow. The attack is possible to be carried out remotely. The exploit is now public and may be used.

    Published:Feb 22, 2026
    Last Modified:Apr 17, 2026
    EPS:Feb 22, 2026
    EPSS Score:0.00097
    CVSS Score:8.8

    Affected Products

    Vendor
    Tenda
    Product
    Hg9
    Vendor
    Tenda
    Product
    Hg9 Firmware

    Exploits

    https://github.com/QIU-DIE/cve-nneeww/issues/11

    Related CVEs

    CVE-2026-2910 (CVSS 7.4) — A flaw has been found in Tenda HG9 300001138. This vulnerability affects unknown code of the file /boaform/for…
    CVE-2026-2908 (CVSS 7.4) — A security vulnerability has been detected in Tenda HG9 300001138. Affected by this issue is some unknown func…
    CVE-2026-2907 (CVSS 7.4) — A weakness has been identified in Tenda HG9 300001138. Affected by this vulnerability is an unknown functional…
    CVE-2026-2906 (CVSS 7.4) — A security flaw has been discovered in Tenda HG9 300001138. Affected is an unknown function of the file /boafo…
    CVE-2026-2905 (CVSS 7.4) — A vulnerability was identified in Tenda HG9 300001138. This impacts an unknown function of the file /boaform/f…
    CVE-2022-30023 (CVSS 8.8) — Tenda ONT GPON AC1200 Dual band WiFi HG9 v1.0.1 is vulnerable to Command Injection via the Ping function.…

    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