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CVE-2018-1146

Status: ModifiedHigh (7.5)—

A remote unauthenticated user can enable telnet on the Belkin N750 using firmware version 1.10.22 by sending a crafted HTTP request to set.cgi. When enabled the telnet session requires no password and provides root access.

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)

Belkin — N750 Firmware

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2018-1146",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:N/I:P/A:N",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
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    "cvssMetricV30": [
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        "cvssData": {
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          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "vulnreport@tenable.com",
      "affectedData": [
        {
          "vendor": "Belkin",
          "product": "N750 DB Wi-Fi Dual-Band N+ Gigabit Router (F9K1103)",
          "versions": [
            {
              "status": "affected",
              "version": "Firmware 1.10.22?"
            }
          ]
        }
      ]
    }
  ],
  "published": "2018-04-19T13:29:00.403",
  "references": [
    {
      "url": "https://www.tenable.com/security/research/tra-2018-08",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "source": "vulnreport@tenable.com"
    },
    {
      "url": "https://www.tenable.com/security/research/tra-2018-08",
      "tags": [
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        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A remote unauthenticated user can enable telnet on the Belkin N750 using firmware version 1.10.22 by sending a crafted HTTP request to set.cgi. When enabled the telnet session requires no password and provides root access."
    },
    {
      "lang": "es",
      "value": "Un usuario remoto no autenticado puede habilitar telnet en Belkin N750, en la versión de firmware 1.10.22, mediante el envío de una petición HTTP manipulada en set.cgi. Cuando está habilitada, la sesión telnet no requiere contraseña y proporciona acceso root."
    }
  ],
  "lastModified": "2026-06-17T01:50:35.020",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
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          "operator": "OR"
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            }
          ],
          "operator": "OR"
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      "operator": "AND"
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  ],
  "sourceIdentifier": "vulnreport@tenable.com"
}