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    CVE-2026-3227

    A command injection vulnerability was identified in TP-Link TL-WR802N v4, TL-WR841N v14, and TL-WR840N v6 due to improper neutralization of special elements used in an OS command. In the router configuration import function allows an authenticated attacker to upload a crafted configuration file that results in execution of OS commands with root privileges during port-trigger processing. Successful exploitation allows an authenticated attacker to execute system commands with root privileges, leading to full device compromise.

    Published:Mar 13, 2026
    Last Modified:Jul 1, 2026
    EPS:Mar 13, 2026
    EPSS Score:0.01102
    CVSS Score:6.8

    Affected Products

    Vendor
    Tp-link
    Product
    Tl-wr802n
    Vendor
    Tp-link
    Product
    Tl-wr802n Firmware
    Vendor
    Tp-link
    Product
    Tl-wr840n
    Vendor
    Tp-link
    Product
    Tl-wr840n Firmware
    Vendor
    Tp-link
    Product
    Tl-wr841n
    Vendor
    Tp-link
    Product
    Tl-wr841n Firmware
    Vendor
    Tp Link
    Product
    Tl-wr840n

    Exploits

    https://github.com/do4choo/CVE-2026-3227-TP-Link-authenticated-RCE

    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