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FKIE_CVE-2020-5761

Vulnerability from fkie_nvd - Published: 2020-07-29 19:15 - Updated: 2026-06-17 03:22
Summary
Grandstream HT800 series firmware version 1.0.17.5 and below is vulnerable to CPU exhaustion due to an infinite loop in the TR-069 service. Unauthenticated remote attackers can trigger this case by sending a one character TCP message to the TR-069 service.

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "Grandstream HT800 Series",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "Versions 1.0.17.5 and below"
            }
          ]
        }
      ],
      "source": "vulnreport@tenable.com"
    }
  ],
  "configurations": [
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              "matchCriteriaId": "10C6AE2E-DCBA-471E-AC05-D04021F625CE",
              "versionEndIncluding": "1.0.17.5",
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            }
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          "negate": false,
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              "versionEndIncluding": "1.0.17.5",
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          ],
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      ],
      "operator": "AND"
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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Grandstream HT800 series firmware version 1.0.17.5 and below is vulnerable to CPU exhaustion due to an infinite loop in the TR-069 service. Unauthenticated remote attackers can trigger this case by sending a one character TCP message to the TR-069 service."
    },
    {
      "lang": "es",
      "value": "Grandstream serie HT800 versiones de firmware 1.0.17.5 y posteriores, es vulnerable a un agotamiento del CPU debido a un bucle infinito en el servicio TR-069. Los atacantes remotos no autenticados pueden activar este caso mediante el env\u00edo de un mensaje TCP de un car\u00e1cter hacia el servicio TR-069"
    }
  ],
  "id": "CVE-2020-5761",
  "lastModified": "2026-06-17T03:22:11.207",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "HIGH",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "COMPLETE",
          "baseScore": 7.8,
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:C",
          "version": "2.0"
        },
        "exploitabilityScore": 10.0,
        "impactScore": 6.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2020-07-29T19:15:15.047",
  "references": [
    {
      "source": "vulnreport@tenable.com",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://www.tenable.com/security/research/tra-2020-43"
    },
    {
      "source": "vulnreport@tenable.com",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "url": "https://www.tenable.com/security/research/tra-2020-47"
    },
    {
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      "tags": [
        "Exploit",
        "Third Party Advisory"
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      "url": "https://www.tenable.com/security/research/tra-2020-43"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
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      "url": "https://www.tenable.com/security/research/tra-2020-47"
    }
  ],
  "sourceIdentifier": "vulnreport@tenable.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-835"
        }
      ],
      "source": "vulnreport@tenable.com",
      "type": "Secondary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-835"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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