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    CVE-2026-9457

    A vulnerability was determined in Totolink A8000RU 7.1cu.643_b20200521. The affected element is the function UploadFirmwareFile of the file /cgi-bin/cstecgi.cgi of the component Web Management Interface. This manipulation of the argument FileName causes os command injection. The attack is possible to be carried out remotely. The exploit has been publicly disclosed and may be utilized.

    Published:May 25, 2026
    Last Modified:May 26, 2026
    EPS:May 25, 2026
    EPSS Score:0.00892
    CVSS Score:9.8

    Affected Products

    Vendor
    Totolink
    Product
    A8000ru
    Vendor
    Totolink
    Product
    A8000ru Firmware

    Exploits

    No exploit reference

    Related CVEs

    CVE-2026-9478 (CVSS 8.9) — A weakness has been identified in Totolink A8000RU 7.1cu.643_b20200521. Impacted is the function setParentalRu…
    CVE-2026-9477 (CVSS 8.9) — A security flaw has been discovered in Totolink A8000RU 7.1cu.643_b20200521. This issue affects the function s…
    CVE-2026-9476 (CVSS 8.9) — A vulnerability was identified in Totolink A8000RU 7.1cu.643_b20200521. This vulnerability affects the functio…
    CVE-2026-9475 (CVSS 8.9) — A vulnerability was determined in Totolink A8000RU 7.1cu.643_b20200521. This affects the function setIpQosRule…
    CVE-2026-9458 (CVSS 8.9) — A vulnerability was identified in Totolink A8000RU 7.1cu.643_b20200521. The impacted element is the function s…
    CVE-2026-9456 (CVSS 8.9) — A vulnerability was found in Totolink A8000RU 7.1cu.643_b20200521. Impacted is the function setOpenVpnCfg of t…
    CVE-2026-9455 (CVSS 8.9) — A vulnerability has been found in Totolink A8000RU 7.1cu.643_b20200521. This issue affects the function Upload…
    CVE-2026-9454 (CVSS 8.9) — A flaw has been found in Totolink A8000RU 7.1cu.643_b20200521. This vulnerability affects the function setOpen…
    CVE-2026-9436 (CVSS 8.9) — A flaw has been found in Totolink A8000RU 7.1cu.643_b20200521. The impacted element is the function setL2tpSer…
    CVE-2026-9435 (CVSS 8.9) — A vulnerability was detected in Totolink A8000RU 7.1cu.643_b20200521. The affected element is the function set…

    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