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    CVE-2025-12209

    A vulnerability was determined in Tenda O3 1.0.0.10(2478). Affected is the function SetValue/GetValue of the file /goform/setDhcpConfig. Executing a manipulation of the argument dhcpEn can lead to stack-based buffer overflow. The attack may be performed from remote. The exploit has been publicly disclosed and may be utilized.

    Published:Oct 27, 2025
    Last Modified:Feb 24, 2026
    EPS:Oct 27, 2025
    EPSS Score:0.00106
    CVSS Score:8.8

    Affected Products

    Vendor
    Tenda
    Product
    O3
    Vendor
    Tenda
    Product
    O3 Firmware
    Vendor
    Tenda
    Product
    O3 Firmware1.0.0.10\(2478\)

    Exploits

    https://github.com/noahze01/IoT-vulnerable/blob/main/Tenda/O3v2.0/setDhcpConfig.mdhttps://github.com/noahze01/IoT-vulnerable/blob/main/Tenda/O3v2.0/setDhcpConfig.md

    Related CVEs

    CVE-2025-12214 (CVSS 7.4) — A vulnerability was detected in Tenda O3 1.0.0.10(2478). This issue affects the function SetValue/GetValue of …
    CVE-2025-12213 (CVSS 7.4) — A security vulnerability has been detected in Tenda O3 1.0.0.10(2478). This vulnerability affects the function…
    CVE-2025-12212 (CVSS 7.4) — A weakness has been identified in Tenda O3 1.0.0.10(2478). This affects the function SetValue/GetValue of the …
    CVE-2025-12211 (CVSS 7.4) — A security flaw has been discovered in Tenda O3 1.0.0.10(2478). Affected by this issue is the function SetValu…
    CVE-2025-12210 (CVSS 7.4) — A vulnerability was identified in Tenda O3 1.0.0.10(2478). Affected by this vulnerability is the function SetV…
    CVE-2025-55613 (CVSS 9.8) — Tenda O3V2 1.0.0.12(3880) is vulnerable to Buffer Overflow in the fromSafeSetMacFilter function via the mac pa…
    CVE-2025-7423 (CVSS 7.4) — A vulnerability classified as critical was found in Tenda O3V2 1.0.0.12(3880). Affected by this vulnerability …
    CVE-2025-7422 (CVSS 7.4) — A vulnerability classified as critical has been found in Tenda O3V2 1.0.0.12(3880). Affected is the function s…
    CVE-2025-7421 (CVSS 7.4) — A vulnerability was found in Tenda O3V2 1.0.0.12(3880). It has been rated as critical. This issue affects the …
    CVE-2025-7420 (CVSS 7.4) — A vulnerability was found in Tenda O3V2 1.0.0.12(3880). It has been declared as critical. This vulnerability a…

    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