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    CVE-2026-2874

    A flaw has been found in Tenda A21 1.0.0.0. Impacted is the function form_fast_setting_wifi_set of the file /goform/fast_setting_wifi_set. Executing a manipulation of the argument ssid can lead to stack-based buffer overflow. It is possible to launch the attack remotely. The exploit has been published and may be used.

    Published:Feb 21, 2026
    Last Modified:Apr 18, 2026
    EPS:Feb 21, 2026
    EPSS Score:0.00097
    CVSS Score:8.8

    Affected Products

    Vendor
    Tenda
    Product
    A21
    Vendor
    Tenda
    Product
    A21 Firmware

    Exploits

    https://github.com/QIU-DIE/cve-nneeww/issues/5

    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