CVE-2026-51743

Estado: AplazadaCrítica (9.1)—

Incorrect access control in the guest_wifi_sync function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to disable guest virtual AP interfaces via sending a crafted MQTT message to the cs_broker component.

CVSS

Versión: 3.1
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Puntuación base: 9.1

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 0.51%
Percentil entre todas las CVEs puntuadas: 42
Fecha de la puntuación: 5/10/2026

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).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

ExplotaciónT1190 Exploit Public-Facing Applicationinitial access90 %
Impacto principalT1565.002 Transmitted Data Manipulationimpact75 %
Impacto secundarioT1499.004 Application or System Exploitationimpact65 %

Vector CVSS AV:N/AC:L/PR:N/UI:N indica acceso remoto sin autenticación (T1190). El atacante puede deshabilitar interfaces AP guest modificando el estado del sistema vía MQTT (T1565.002 manipulación de datos), causando negación de servicio (T1499.004).

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Filter Network Traffic Vulnerability Scanning Privileged Account Management Network Segmentation Limit Access to Resource Over Network Encrypt Sensitive Information

Tecnologías afectadas (1)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Totolink — T6^AI

CWE

CWE-284

Referencias

JSON original (NVD)

Mostrar

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  "id": "CVE-2026-51743",
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        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-51743",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-09-01T17:52:38.030334Z"
        }
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          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.2,
        "exploitabilityScore": 3.9
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  "affected": [
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      "affectedData": [
        {
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          "versions": [
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  "published": "2026-09-01T13:19:45.280",
  "references": [
    {
      "url": "https://github.com/DarkBoulder/CVE-Vendor-Coordination/blob/main/TOTOLINK/README.md",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://github.com/ShengWu00/CVE-Vendor-Coordination/blob/main/TOTOLINK/README.md",
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    {
      "url": "https://www.totolink.net/",
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    {
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      "value": "Incorrect access control in the guest_wifi_sync function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to disable guest virtual AP interfaces via sending a crafted MQTT message to the cs_broker component."
    }
  ],
  "lastModified": "2026-09-01T21:00:36.830",
  "sourceIdentifier": "cve@mitre.org"
}