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    CVE-2026-79911

    A security vulnerability has been detected in TOTOLINK N600R 4.3.0cu.7647_B20210106. The affected element is the function setSystemConfig of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. Such manipulation of the argument Hostname leads to stack-based buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed publicly and may be used.

    Published:Aug 25, 2026
    Last Modified:Aug 27, 2026
    EPS:Aug 25, 2026
    EPSS Score:0.00644
    CVSS Score:10

    Affected Products

    Vendor
    Totolink
    Product
    N600r
    Vendor
    Totolink
    Product
    N600r Firmware

    Exploits

    No exploit reference

    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-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-2025-11444 (CVSS 7.4) — A security vulnerability has been detected in TOTOLINK N600R up to 4.3.0cu.7866_B20220506. This impacts the fu…
    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