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CVE-2021-40284

Estado: ModificadaMedia (6.5)—

D-Link DSL-3782 EU v1.01:EU v1.03 is affected by a buffer overflow which can cause a denial of service. This vulnerability exists in the web interface "/cgi-bin/New_GUI/Igmp.asp". Authenticated remote attackers can trigger this vulnerability by sending a long string in parameter 'igmpsnoopEnable' via an HTTP request.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2021-40284",
  "cveTags": [],
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        "type": "Primary",
        "source": "nvd@nist.gov",
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          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:S/C:N/I:N/A:C",
          "authentication": "SINGLE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "NONE"
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        "acInsufInfo": false,
        "impactScore": 6.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
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          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
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  "affected": [
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      "affectedData": [
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  "published": "2021-09-09T17:15:07.287",
  "references": [
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  "vulnStatus": "Modified",
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      "description": [
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          "lang": "en",
          "value": "CWE-120"
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      "lang": "en",
      "value": "D-Link DSL-3782 EU v1.01:EU v1.03 is affected by a buffer overflow which can cause a denial of service. This vulnerability exists in the web interface \"/cgi-bin/New_GUI/Igmp.asp\". Authenticated remote attackers can trigger this vulnerability by sending a long string in parameter 'igmpsnoopEnable' via an HTTP request."
    },
    {
      "lang": "es",
      "value": "D-Link DSL-3782 versiones  EU v1.01:EU v1.03, está afectado por un desbordamiento de búfer que puede causar una denegación de servicio. Esta vulnerabilidad se presenta en la interfaz web \"/cgi-bin/New_GUI/Igmp.asp\". Unos atacantes autenticados remotos pueden desencadenar esta vulnerabilidad mediante el envío de una cadena larga en el parámetro \"igmpsnoopEnable\" por medio de una petición HTTP"
    }
  ],
  "lastModified": "2026-06-17T04:06:42.333",
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