CVE-2026-13308

{
  "id": "CVE-2026-13308",
  "sourceIdentifier": "[email protected]",
  "published": "2026-07-29T21:17:46.490",
  "lastModified": "2026-10-24T13:10:00.147",
  "vulnStatus": "Awaiting Analysis",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Autel MaxiCharger AC Elite Home WebSockets Integer Underflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Autel MaxiCharger AC Elite Home EV chargers. Authentication is not required to exploit this vulnerability.\n\nThe specific flaw exists within the handling of WebSocket messages related to the OCPP service. The issue results from the lack of proper validation of user-supplied data, which can result in an integer underflow before allocating a buffer. An attacker can leverage this vulnerability to execute code in the context of the device. Was ZDI-CAN-29113."
    },
    {
      "lang": "es",
      "value": "Vulnerabilidad de ejecución remota de código por subdesbordamiento de enteros de WebSockets en Autel MaxiCharger AC Elite Home. Esta vulnerabilidad permite a atacantes remotos ejecutar código arbitrario en instalaciones afectadas de cargadores de VE Autel MaxiCharger AC Elite Home. No se requiere autenticación para explotar esta vulnerabilidad.\n\nLa falla específica reside en el manejo de mensajes de WebSocket relacionados con el servicio OCPP. El problema se debe a la falta de validación adecuada de los datos proporcionados por el usuario, lo que puede resultar en un subdesbordamiento de enteros antes de asignar un búfer. Un atacante puede aprovechar esta vulnerabilidad para ejecutar código en el contexto del dispositivo. Fue ZDI-CAN-29113."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "Autel",
          "product": "MaxiCharger AC Elite Home",
          "defaultStatus": "unknown",
          "versions": [
            {
              "version": "1.39.51",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV30": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.0",
          "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "baseScore": 8.1,
          "baseSeverity": "HIGH",
          "attackVector": "NETWORK",
          "attackComplexity": "HIGH",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 2.2,
        "impactScore": 5.9
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-07-30T14:18:50.003364Z",
          "id": "CVE-2026-13308",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-191"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://www.zerodayinitiative.com/advisories/ZDI-26-437/",
      "source": "[email protected]"
    }
  ]
}