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    CVE-2026-3301

    A security flaw has been discovered in Totolink N300RH 6.1c.1353_B20190305. Affected by this vulnerability is the function setWebWlanIdx of the file /cgi-bin/cstecgi.cgi of the component Web Management Interface. Performing a manipulation of the argument webWlanIdx results in os command injection. The attack can be initiated remotely. The exploit has been released to the public and may be used for attacks.

    Published:Feb 27, 2026
    Last Modified:Apr 17, 2026
    EPS:Feb 27, 2026
    EPSS Score:0.01006
    CVSS Score:9.8

    Affected Products

    Vendor
    Totolink
    Product
    N300rh
    Vendor
    Totolink
    Product
    N300rh Firmware

    Exploits

    https://github.com/xyh4ck/iot_poc/blob/main/TOTOLINK/N300RHv4/01_setWebWlanIdx_RCE/README.md

    Related CVEs

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    CVE-2026-7748 (CVSS 7.4) — A weakness has been identified in Totolink N300RH 3.2.4-B20220812. Affected by this issue is the function setU…
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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