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    CVE-2021-27707

    Buffer Overflow in Tenda G1 and G3 routers with firmware v15.11.0.17(9502)_CN allows remote attackers to execute arbitrary code via a crafted action/"portMappingIndex "request. This occurs because the "formDelPortMapping" function directly passes the parameter "portMappingIndex" to strcpy without limit.

    Published:Apr 14, 2021
    Last Modified:Nov 21, 2024
    EPS:Apr 14, 2021
    EPSS Score:0.03106
    CVSS Score:9.8

    Affected Products

    Vendor
    Tenda
    Product
    G1
    Vendor
    Tenda
    Product
    G1 Firmware
    Vendor
    Tenda
    Product
    G3
    Vendor
    Tenda
    Product
    G3 Firmware

    Exploits

    https://hackmd.io/U7OVgYIuRcOKV7SW5-euHwhttps://hackmd.io/U7OVgYIuRcOKV7SW5-euHw

    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