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CVE-2018-5770

Status: ModifiedCritical (9.8)—

An issue was discovered on Tenda AC15 devices. A remote, unauthenticated attacker can make a request to /goform/telnet, creating a telnetd service on the device. This service is password protected; however, several default accounts exist on the device that are root accounts, which can be used to log in.

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (1)

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2018-5770",
  "cveTags": [],
  "metrics": {
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        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
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          "baseScore": 10,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:C/I:C/A:C",
          "authentication": "NONE",
          "integrityImpact": "COMPLETE",
          "accessComplexity": "LOW",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "COMPLETE"
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        "acInsufInfo": true,
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        "obtainAllPrivilege": false,
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          "integrityImpact": "HIGH",
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          "attackComplexity": "LOW",
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          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
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        "impactScore": 5.9,
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  "affected": [
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      "affectedData": [
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          "vendor": "n/a",
          "product": "n/a",
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  "published": "2018-03-20T15:29:00.657",
  "references": [
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      "url": "https://www.fidusinfosec.com/tenda-ac15-unauthenticated-telnetd-start-cve-2018-5770/",
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        "Third Party Advisory"
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  "vulnStatus": "Modified",
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      "description": [
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          "lang": "en",
          "value": "CWE-1188"
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  ],
  "descriptions": [
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      "lang": "en",
      "value": "An issue was discovered on Tenda AC15 devices. A remote, unauthenticated attacker can make a request to /goform/telnet, creating a telnetd service on the device. This service is password protected; however, several default accounts exist on the device that are root accounts, which can be used to log in."
    },
    {
      "lang": "es",
      "value": "Se ha descubierto un problema en dispositivos Tenda AC15. Un atacante remoto no autenticado puede hacer una petición en /goform/telnet, creando un servicio telnetd en el dispositivo. Este servicio está protegido por contraseña; sin embargo, existen varias cuentas por defecto en el dispositivo que son root, que pueden emplearse para iniciar sesión."
    }
  ],
  "lastModified": "2026-06-17T02:00:45.220",
  "configurations": [
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