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CVE-2020-6882

Estado: ModificadaAlta (7.5)—

ZTE E8810/E8820/E8822 series routers have an information leak vulnerability, which is caused by hard-coded MQTT service access credentials on the device. The remote attacker could use this credential to connect to the MQTT server, so as to obtain information about other devices by sending specific topics. This affects:<ZXHN E8810, ZXHN E8820, ZXHN E8822><E8810 V1.0.26, E8810 V2.0.1, E8820 V1.1.3L, E8820 V2.0.13, E8822 V2.0.13>

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 (3)

ZTE — Zxhn E8810 FirmwareZTE — Zxhn E8820 FirmwareZTE — Zxhn E8822 Firmware

CWE

Referencias

JSON original (NVD)

Mostrar
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  "id": "CVE-2020-6882",
  "cveTags": [],
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        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
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          "baseScore": 5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/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,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
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          "baseScore": 7.5,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
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        "impactScore": 3.6,
        "exploitabilityScore": 3.9
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  "affected": [
    {
      "source": "psirt@zte.com.cn",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "<ZXHN E8810, ZXHN E8820, ZXHN E8822>",
          "versions": [
            {
              "status": "affected",
              "version": "<E8810 V1.0.26, E8810 V2.0.1, E8820 V1.1.3L,  E8820 V2.0.13, E8822 V2.0.13>"
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  "published": "2020-12-21T18:15:16.790",
  "references": [
    {
      "url": "http://support.zte.com.cn/support/news/LoopholeInfoDetail.aspx?newsId=1014202",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "psirt@zte.com.cn"
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      "url": "http://support.zte.com.cn/support/news/LoopholeInfoDetail.aspx?newsId=1014202",
      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  "vulnStatus": "Modified",
  "weaknesses": [
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      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-798"
        }
      ]
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  "descriptions": [
    {
      "lang": "en",
      "value": "ZTE E8810/E8820/E8822 series routers have an information leak vulnerability, which is caused by hard-coded MQTT service access credentials on the device. The remote attacker could use this credential to connect to the MQTT server, so as to obtain information about other devices by sending specific topics. This affects:<ZXHN E8810, ZXHN E8820, ZXHN E8822><E8810 V1.0.26, E8810 V2.0.1, E8820 V1.1.3L, E8820 V2.0.13, E8822 V2.0.13>"
    },
    {
      "lang": "es",
      "value": "Los enrutadores de la serie ZTE E8810/E8820/E8822, presentan una vulnerabilidad de filtración de información, que es causada por unas credenciales de acceso al servicio MQTT embebidas en el dispositivo.&#xa0;El atacante remoto podría usar esta credencial para conectarse al servidor MQTT, con el fin de conseguir información sobre otros dispositivos mediante el envío de temas específicos.&#xa0;Esto afecta a: (ZXHN versión E8810, ZXHN versión E8820, ZXHN versión E8822)(E8810 versión V1.0.26, E8810 versión V2.0.1, E8820 versión V1.1.3L, E8820 versión V2.0.13, E8822 versión V2.0.13)"
    }
  ],
  "lastModified": "2026-06-17T03:23:58.340",
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