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CVE-2023-49955

Estado: ModificadaAlta (7.5)—

An issue was discovered in Dalmann OCPP.Core before 1.2.0 for OCPP (Open Charge Point Protocol) for electric vehicles. It does not validate the length of the chargePointVendor field in a BootNotification message, potentially leading to server instability and a denial of service when processing excessively large inputs. NOTE: the vendor's perspective is "OCPP.Core is intended for use in a protected environment/network."

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)

Dallmann-consulting — Open Charge Point Protocol

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2023-49955",
  "cveTags": [],
  "metrics": {
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.5,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
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      ]
    }
  ],
  "published": "2023-12-07T13:15:07.690",
  "references": [
    {
      "url": "https://github.com/dallmann-consulting/OCPP.Core/issues/32",
      "tags": [
        "Exploit",
        "Issue Tracking",
        "Vendor Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://github.com/dallmann-consulting/OCPP.Core/issues/32",
      "tags": [
        "Exploit",
        "Issue Tracking",
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "An issue was discovered in Dalmann OCPP.Core before 1.2.0 for OCPP (Open Charge Point Protocol) for electric vehicles. It does not validate the length of the chargePointVendor field in a BootNotification message, potentially leading to server instability and a denial of service when processing excessively large inputs. NOTE: the vendor's perspective is \"OCPP.Core is intended for use in a protected environment/network.\""
    },
    {
      "lang": "es",
      "value": "Se descubrió un problema en Dalmann OCPP.Core anterior a 1.2.0 para OCPP (Protocolo de punto de carga abierto) para vehículos eléctricos. No valida la longitud del campo chargePointVendor en un mensaje BootNotification, lo que puede provocar inestabilidad del servidor y denegación de servicio al procesar entradas excesivamente grandes. NOTA: la perspectiva del proveedor es \"OCPP.Core está diseñado para su uso en un entorno/red protegido\"."
    }
  ],
  "lastModified": "2026-06-17T06:36:46.280",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:dallmann-consulting:open_charge_point_protocol:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "1570FC53-9573-4F61-A082-9E51BE80961D",
              "versionEndExcluding": "1.2.0"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}