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    CVE-2025-11444

    A security vulnerability has been detected in TOTOLINK N600R up to 4.3.0cu.7866_B20220506. This impacts the function setWiFiBasicConfig of the file /cgi-bin/cstecgi.cgi of the component HTTP Request Handler. Such manipulation of the argument wepkey leads to buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed publicly and may be used.

    Published:Oct 8, 2025
    Last Modified:Feb 24, 2026
    EPS:Oct 8, 2025
    EPSS Score:0.00221
    CVSS Score:8.8

    Affected Products

    Vendor
    Totolink
    Product
    N600r
    Vendor
    Totolink
    Product
    N600r Firmware

    Exploits

    https://github.com/z472421519/BinaryAudit/blob/main/PoC/BOF/TOTOLINK/wepkey/wepkey.mdhttps://github.com/z472421519/BinaryAudit/blob/main/PoC/BOF/TOTOLINK/wepkey/wepkey.md#reproducehttps://github.com/z472421519/BinaryAudit/blob/main/PoC/BOF/TOTOLINK/wepkey/wepkey.mdhttps://github.com/z472421519/BinaryAudit/blob/main/PoC/BOF/TOTOLINK/wepkey/wepkey.md#reproduce

    Related CVEs

    CVE-2026-82555 (CVSS 2.9) — A vulnerability has been found in TOTOLINK N600R 4.3.0cu.7866_B20220506. This vulnerability affects the functi…
    CVE-2026-79912 (CVSS 5.5) — A vulnerability was detected in TOTOLINK N600R 4.3.0cu.7647_B20210106. The impacted element is the function ge…
    CVE-2026-79911 (CVSS 9.3) — A security vulnerability has been detected in TOTOLINK N600R 4.3.0cu.7647_B20210106. The affected element is t…
    CVE-2025-60335 (CVSS 7.5) — A NULL pointer dereference in the main function of TOTOLINK N600R v4.3.0cu.7866_B20220506 allows attackers to …
    CVE-2025-60336 (CVSS 7.5) — A NULL pointer dereference in the sub_41773C function of TOTOLINK N600R v4.3.0cu.7866_B20220506 allows attacke…
    CVE-2025-60334 (CVSS 7.5) — TOTOLINK N600R v4.3.0cu.7866_B20220506 was discovered to contain a stack overflow in the ssid parameter in the…
    CVE-2025-60333 (CVSS 7.5) — TOTOLINK N600R v4.3.0cu.7866_B20220506 was discovered to contain a stack overflow in the wepkey2 parameter in …
    CVE-2025-57623 (CVSS 5.3) — A NULL pointer dereference in TOTOLINK N600R firmware v4.3.0cu.7866_B2022506 allows attackers to cause a Denia…
    CVE-2025-9935 (CVSS 5.5) — A vulnerability was determined in TOTOLINK N600R 4.3.0cu.7866_B20220506. This vulnerability affects the functi…
    CVE-2025-51390 (CVSS 9.8) — TOTOLINK N600R V4.3.0cu.7647_B20210106 was discovered to contain a command injection vulnerability via the pin…

    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