CVE-2026-19959

Estado: AplazadaAlta (8.6)—

A weakness has been identified in Edimax EW-7478APC 1.04. This affects the function formWanTcpipSetup of the file /goform/formWanTcpipSetup. This manipulation of the argument pppUserName causes stack-based buffer overflow. Remote exploitation of the attack is possible. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

CVSS

Versión: 4.0
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Puntuación base: 8.6

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 0.80%
Percentil entre todas las CVEs puntuadas: 55
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.

ExplotaciónT1210 Exploitation of Remote Serviceslateral movement85 %
Impacto principalT1059 Command and Scripting Interpreterexecution80 %
Impacto secundarioT1068 Exploitation for Privilege Escalationprivilege escalation75 %

Buffer overflow remoto en aplicación web (Edimax) con PR:L accede a servicios en red adyacente. Permite ejecución de código y potencial escalada de privilegios en el router.

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

Threat Intelligence Program Privileged Account Management Execution Prevention Disable or Remove Feature or Program Application Isolation and Sandboxing Exploit Protection

Tecnologías afectadas (1)

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

Edimax — Ew-7478apc^AI

CWE

CWE-119, CWE-121

Referencias

JSON original (NVD)

Mostrar

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  "id": "CVE-2026-19959",
  "cveTags": [],
  "metrics": {
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        "ssvcData": {
          "id": "CVE-2026-19959",
          "role": "CISA Coordinator",
          "options": [
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            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
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          "version": "2.0.3",
          "timestamp": "2026-08-18T13:29:49.825254Z"
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          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "COMPLETE"
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        "acInsufInfo": false,
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        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
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    "cvssMetricV31": [
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          "Automatable": "NOT_DEFINED",
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          "valueDensity": "NOT_DEFINED",
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      "affectedData": [
        {
          "cpes": [
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          ],
          "vendor": "Edimax",
          "product": "EW-7478APC",
          "versions": [
            {
              "status": "affected",
              "version": "1.04"
            }
          ]
        }
      ]
    }
  ],
  "published": "2026-08-16T23:16:24.710",
  "references": [
    {
      "url": "https://lavender-bicycle-a5a.notion.site/EDIMAX-EW-7478APC-formWanTcpipSetup-34b53a41781f8047b36bd11dbcaa84dc?source=copy_link",
      "source": "cna@vuldb.com"
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    {
      "url": "https://vuldb.com/cve/CVE-2026-19959",
      "source": "cna@vuldb.com"
    },
    {
      "url": "https://vuldb.com/submit/872873",
      "source": "cna@vuldb.com"
    },
    {
      "url": "https://vuldb.com/vuln/391136",
      "source": "cna@vuldb.com"
    },
    {
      "url": "https://vuldb.com/vuln/391136/cti",
      "source": "cna@vuldb.com"
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      "source": "cna@vuldb.com",
      "description": [
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          "lang": "en",
          "value": "CWE-119"
        },
        {
          "lang": "en",
          "value": "CWE-121"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A weakness has been identified in Edimax EW-7478APC 1.04. This affects the function formWanTcpipSetup of the file /goform/formWanTcpipSetup. This manipulation of the argument pppUserName causes stack-based buffer overflow. Remote exploitation of the attack is possible. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way."
    }
  ],
  "lastModified": "2026-08-20T12:48:31.843",
  "sourceIdentifier": "cna@vuldb.com"
}