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CVE-2017-9477

Estado: ModificadaMedia (6.5)—

The Comcast firmware on Cisco DPC3939 (firmware version dpc3939-P20-18-v303r20421733-160420a-CMCST) and DPC3939 (firmware version dpc3939-P20-18-v303r20421746-170221a-CMCST) devices allows remote attackers to discover the CM MAC address by connecting to the device's xfinitywifi hotspot.

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)

Cisco — Dpc3939 Firmware

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2017-9477",
  "cveTags": [],
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        "source": "nvd@nist.gov",
        "cvssData": {
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          "baseScore": 3.3,
          "accessVector": "ADJACENT_NETWORK",
          "vectorString": "AV:A/AC:L/Au:N/C:P/I:N/A:N",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
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        "obtainAllPrivilege": false,
        "exploitabilityScore": 6.5,
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          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
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  "affected": [
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      "affectedData": [
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              "status": "affected",
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  "published": "2017-07-31T03:29:00.270",
  "references": [
    {
      "url": "https://github.com/BastilleResearch/CableTap/blob/master/doc/advisories/bastille-19.wifi-dhcp-cm-mac-leak.txt",
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  "vulnStatus": "Modified",
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      "lang": "en",
      "value": "The Comcast firmware on Cisco DPC3939 (firmware version dpc3939-P20-18-v303r20421733-160420a-CMCST) and DPC3939 (firmware version dpc3939-P20-18-v303r20421746-170221a-CMCST) devices allows remote attackers to discover the CM MAC address by connecting to the device's xfinitywifi hotspot."
    },
    {
      "lang": "es",
      "value": "El firmware de Comcast en los dispositivos Cisco DPC3939 (versión de firmware dpc3939-P20-18-v303r20421733-160420a-CMCST) y DPC3939 (versión de firmware dpc3939-P20-18-v303r20421746-170221a-CMCST), permite a los atacantes remotos detectar la dirección MAC CM mediante la conexión al hotspot xfinitywifi del dispositivo."
    }
  ],
  "lastModified": "2026-06-17T01:28:11.933",
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