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    CVE-2026-4497

    A vulnerability was determined in Totolink WA300 5.2cu.7112_B20190227. Affected by this issue is the function recvUpgradeNewFw of the file /cgi-bin/cstecgi.cgi. This manipulation causes os command injection. Remote exploitation of the attack is possible. The exploit has been publicly disclosed and may be utilized.

    Published:Mar 20, 2026
    Last Modified:Apr 22, 2026
    EPS:Mar 20, 2026
    EPSS Score:0.00644
    CVSS Score:7.3

    Affected Products

    Vendor
    Totolink
    Product
    Wa300
    Vendor
    Totolink
    Product
    Wa300 Firmware

    Exploits

    https://github.com/hellonestor/killallbug/issues/1https://github.com/user-attachments/files/25790616/Unauthenticated.Remote.Code.Execution.in.TOTOLINK.WA300.via.Command.Injection.in.recvUpgradeNewFw.zip

    Related CVEs

    CVE-2026-7721 (CVSS 2.1) — A security vulnerability has been detected in Totolink WA300 5.2cu.7112_B20190227. This affects the function N…
    CVE-2026-7720 (CVSS 2.1) — A weakness has been identified in Totolink WA300 5.2cu.7112_B20190227. The impacted element is the function se…
    CVE-2026-7719 (CVSS 8.9) — A security flaw has been discovered in Totolink WA300 5.2cu.7112_B20190227. The affected element is the functi…
    CVE-2026-7718 (CVSS 2.1) — A vulnerability was identified in Totolink WA300 5.2cu.7112_B20190227. Impacted is the function setWebWlanIdx …
    CVE-2026-7717 (CVSS 7.4) — A vulnerability was determined in Totolink WA300 5.2cu.7112_B20190227. This issue affects the function UploadC…
    CVE-2026-2167 (CVSS 2.1) — A vulnerability was detected in Totolink WA300 5.2cu.7112_B20190227. The impacted element is the function setA…
    CVE-2026-0641 (CVSS 2.1) — A security vulnerability has been detected in TOTOLINK WA300 5.2cu.7112_B20190227. This vulnerability affects …

    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