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    CVE-2025-14656

    A weakness has been identified in Tenda AC20 16.03.08.12. This affects the function httpd of the file /goform/openSchedWifi. Executing a manipulation of the argument schedStartTime/schedEndTime can lead to buffer overflow. The attack may be performed from remote. The exploit has been made available to the public and could be used for attacks.

    Published:Dec 14, 2025
    Last Modified:Feb 24, 2026
    EPS:Dec 14, 2025
    EPSS Score:0.00106
    CVSS Score:8.8

    Affected Products

    Vendor
    Tenda
    Product
    Ac20
    Vendor
    Tenda
    Product
    Ac20 Firmware

    Exploits

    https://github.com/Madgeaaaaa/MY_VULN_2/blob/main/Tenda/VULN14/AC20_openSchedWifi.md

    Related CVEs

    CVE-2025-15356 (CVSS 7.4) — A vulnerability has been found in Tenda AC20 up to 16.03.08.12. The impacted element is the function sscanf of…
    CVE-2025-14655 (CVSS 7.4) — A security flaw has been discovered in Tenda AC20 16.03.08.12. The impacted element is the function formSetReb…
    CVE-2025-14654 (CVSS 7.4) — A vulnerability was identified in Tenda AC20 16.03.08.12. The affected element is the function formSetPPTPUser…
    CVE-2025-13258 (CVSS 7.4) — A vulnerability was detected in Tenda AC20 up to 16.03.08.12. The impacted element is an unknown function of t…
    CVE-2025-11385 (CVSS 7.4) — A vulnerability has been found in Tenda AC20 up to 16.03.08.12. The affected element is the function sscanf of…
    CVE-2025-10815 (CVSS 7.4) — A vulnerability was identified in Tenda AC20 up to 16.03.08.12. Affected by this issue is the function strcpy …
    CVE-2025-10120 (CVSS 7.4) — A vulnerability was detected in Tenda AC20 up to 16.03.08.12. The impacted element is the function strcpy of t…
    CVE-2025-9791 (CVSS 7.4) — A weakness has been identified in Tenda AC20 16.03.08.05. This vulnerability affects unknown code of the file …
    CVE-2025-9091 (CVSS 1.1) — A security flaw has been discovered in Tenda AC20 16.03.08.12. Affected by this vulnerability is an unknown fu…
    CVE-2025-9090 (CVSS 2.1) — A vulnerability was identified in Tenda AC20 16.03.08.12. Affected is the function websFormDefine of the file …

    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