FKIE_CVE-2026-25857

Vulnerability from fkie_nvd - Published: 2026-02-07 22:16 - Updated: 2026-03-05 20:33
Severity ?
8.8 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
Tenda G300-F router firmware version 16.01.14.2 and prior contain an OS command injection vulnerability in the WAN diagnostic functionality (formSetWanDiag). The implementation constructs a shell command that invokes curl and incorporates attacker-controlled input into the command line without adequate neutralization. As a result, a remote attacker with access to the affected management interface can inject additional shell syntax and execute arbitrary commands on the device with the privileges of the management process.
References
disclosure@vulncheck.comhttps://blog.evan.lat/blog/cve-2026-25857/Exploit, Third Party Advisory
disclosure@vulncheck.comhttps://www.tendacn.com/material/show/736333682028613Product
disclosure@vulncheck.comhttps://www.vulncheck.com/advisories/tenda-g300-f-command-injection-via-formsetwandiagThird Party Advisory, VDB Entry
Impacted products
Vendor Product Version
tenda g300-f_firmware *
tenda g300-f 1.0
To clipboard 

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    {
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              "matchCriteriaId": "22CFA7F2-88E4-44CA-91E8-08D83669B62A",
              "versionEndIncluding": "16.01.14.2",
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  "descriptions": [
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      "lang": "en",
      "value": "Tenda G300-F router firmware version 16.01.14.2 and prior contain an OS command injection vulnerability in the WAN diagnostic functionality (formSetWanDiag). The implementation constructs a shell command that invokes curl and incorporates attacker-controlled input into the command line without adequate neutralization. As a result, a remote attacker with access to the affected management interface can inject additional shell syntax and execute arbitrary commands on the device with the privileges of the management process."
    },
    {
      "lang": "es",
      "value": "El firmware del router Tenda G300-F, versi\u00f3n 16.01.14.2 y anteriores, contiene una vulnerabilidad de inyecci\u00f3n de comandos del sistema operativo en la funcionalidad de diagn\u00f3stico WAN (formSetWanDiag). La implementaci\u00f3n construye un comando de shell que invoca curl e incorpora entrada controlada por el atacante en la l\u00ednea de comandos sin una neutralizaci\u00f3n adecuada. Como resultado, un atacante remoto con acceso a la interfaz de gesti\u00f3n afectada puede inyectar sintaxis de shell adicional y ejecutar comandos arbitrarios en el dispositivo con los privilegios del proceso de gesti\u00f3n."
    }
  ],
  "id": "CVE-2026-25857",
  "lastModified": "2026-03-05T20:33:27.963",
  "metrics": {
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          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
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          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
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        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
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          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "attackVector": "NETWORK",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 8.6,
          "baseSeverity": "HIGH",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "privilegesRequired": "HIGH",
          "providerUrgency": "NOT_DEFINED",
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          "subConfidentialityImpact": "NONE",
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          "userInteraction": "NONE",
          "valueDensity": "NOT_DEFINED",
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          "vulnAvailabilityImpact": "HIGH",
          "vulnConfidentialityImpact": "HIGH",
          "vulnIntegrityImpact": "HIGH",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
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  "published": "2026-02-07T22:16:02.607",
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    },
    {
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      "tags": [
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  "vulnStatus": "Analyzed",
  "weaknesses": [
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          "value": "CWE-78"
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      "source": "disclosure@vulncheck.com",
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}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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