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    CVE-2026-2191

    A weakness has been identified in Tenda AC9 15.03.06.42_multi. Affected is the function formGetDdosDefenceList. This manipulation of the argument security.ddos.map causes stack-based buffer overflow. The attack may be initiated remotely. The exploit has been made available to the public and could be used for attacks.

    Published:Feb 8, 2026
    Last Modified:Apr 18, 2026
    EPS:Feb 8, 2026
    EPSS Score:0.00145
    CVSS Score:7.2

    Affected Products

    Vendor
    Tenda
    Product
    Ac9
    Vendor
    Tenda
    Product
    Ac9 Firmware

    Exploits

    https://github.com/glkfc/IoT-Vulnerability/blob/main/Tenda/tenda3.md

    Related CVEs

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    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