CVE-2026-3868

{
  "id": "CVE-2026-3868",
  "sourceIdentifier": "[email protected]",
  "published": "2026-04-27T04:16:09.090",
  "lastModified": "2026-10-26T22:10:00.163",
  "vulnStatus": "Awaiting Analysis",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "An improper handling of the length parameter inconsistency vulnerability has been identified in Moxa’s Secure Router. Because of improper validation of length parameters in the HTTPS management interface, an unauthenticated remote attacker could send specially crafted requests that trigger a buffer overflow condition, causing the web service to become unresponsive. Successful exploitation may result in a denial-of-service condition requiring a device reboot to restore normal operation. While successful exploitation can severely impact the availability of the affected device, no impact to the confidentiality or integrity of the affected product has been identified. Additionally, no confidentiality, integrity, or availability impact to the subsequent system has been identified."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad de inconsistencia en el manejo inadecuado del parámetro de longitud ha sido identificada en el Secure Router de Moxa. Debido a una validación inadecuada de los parámetros de longitud en la interfaz de gestión HTTPS, un atacante remoto no autenticado podría enviar solicitudes especialmente diseñadas que desencadenan una condición de desbordamiento de búfer, haciendo que el servicio web deje de responder. La explotación exitosa puede resultar en una condición de denegación de servicio que requiere un reinicio del dispositivo para restaurar el funcionamiento normal. Si bien la explotación exitosa puede impactar severamente la disponibilidad del dispositivo afectado, no se ha identificado ningún impacto en la confidencialidad o integridad del producto afectado. Además, no se ha identificado ningún impacto en la confidencialidad, integridad o disponibilidad en el sistema subsiguiente."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "Moxa",
          "product": "EDR-8010 Series",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "1.0",
              "lessThanOrEqual": "3.23",
              "versionType": "custom",
              "status": "affected"
            },
            {
              "version": "3.24",
              "versionType": "custom",
              "status": "unaffected"
            }
          ]
        },
        {
          "vendor": "Moxa",
          "product": "EDR-G9010 Series",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "1.0",
              "lessThanOrEqual": "3.23.1",
              "versionType": "custom",
              "status": "affected"
            },
            {
              "version": "3.24",
              "versionType": "custom",
              "status": "unaffected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV40": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "4.0",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/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",
          "baseScore": 8.7,
          "baseSeverity": "HIGH",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "vulnConfidentialityImpact": "NONE",
          "vulnIntegrityImpact": "NONE",
          "vulnAvailabilityImpact": "HIGH",
          "subConfidentialityImpact": "NONE",
          "subIntegrityImpact": "NONE",
          "subAvailabilityImpact": "NONE",
          "exploitMaturity": "NOT_DEFINED",
          "confidentialityRequirement": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "availabilityRequirement": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "valueDensity": "NOT_DEFINED",
          "vulnerabilityResponseEffort": "NOT_DEFINED",
          "providerUrgency": "NOT_DEFINED"
        }
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-04-27T15:13:55.314280Z",
          "id": "CVE-2026-3868",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-130"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://www.moxa.com/en/support/product-support/security-advisory/mpsa-261521-cve-2026-3867-cve-2026-3868-improper-ownership-management-and-improper-handling-of-length-parameter-incons",
      "source": "[email protected]"
    }
  ]
}