CVE-2026-82762

Estado: AplazadaAlta (8.7)—

Improper neutralization of special elements used in an OS command ('OS Command Injection') issue exists in Contec FX5000 series, FX4000 series, and FX3000 series. If this vulnerability is exploited, an arbitrary OS command may be executed by an attacker who can log in to the product.

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: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
Puntuación base: 8.7

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 1.87%
Percentil entre todas las CVEs puntuadas: 79
Fecha de la puntuación: 6/10/2026

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 movement75 %
Impacto principalT1059 Command and Scripting Interpreterexecution85 %

CWE-78 (inyección de comandos OS) en red con PR:L permite ejecución remota de comandos en sistemas Contec. T1210 por acceso autenticado; T1059 por ejecución de comandos arbitrarios confirmada.

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

Privileged Account Management Disable or Remove Feature or Program Vulnerability Scanning Threat Intelligence Program Restrict Web-Based Content Network Segmentation

Tecnologías afectadas (3)

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

Contec — Fx3000 Series^AI Contec — Fx4000 Series^AI Contec — Fx5000 Series^AI

CWE

CWE-78

Referencias

JSON original (NVD)

Mostrar

{
  "id": "CVE-2026-82762",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-82762",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-09-14T11:10:36.250352Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "vultures@jpcert.or.jp",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 8.8,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 2.8
      }
    ],
    "cvssMetricV40": [
      {
        "type": "Secondary",
        "source": "vultures@jpcert.or.jp",
        "cvssData": {
          "Safety": "NOT_DEFINED",
          "version": "4.0",
          "Recovery": "NOT_DEFINED",
          "baseScore": 8.7,
          "Automatable": "NOT_DEFINED",
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/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",
          "exploitMaturity": "NOT_DEFINED",
          "providerUrgency": "NOT_DEFINED",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "privilegesRequired": "LOW",
          "subIntegrityImpact": "NONE",
          "vulnIntegrityImpact": "HIGH",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "vulnAvailabilityImpact": "HIGH",
          "availabilityRequirement": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "subConfidentialityImpact": "NONE",
          "vulnConfidentialityImpact": "HIGH",
          "confidentialityRequirement": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "vulnerabilityResponseEffort": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED"
        }
      }
    ]
  },
  "affected": [
    {
      "source": "vultures@jpcert.or.jp",
      "affectedData": [
        {
          "vendor": "Contec Co., Ltd.",
          "product": "FXA5000",
          "versions": [
            {
              "status": "affected",
              "version": "0",
              "lessThan": "1.12.00",
              "versionType": "semver"
            }
          ],
          "defaultStatus": "unaffected"
        },
        {
          "vendor": "Contec Co., Ltd.",
          "product": "FXA5020",
          "versions": [
            {
              "status": "affected",
              "version": "0",
              "lessThan": "1.12.00",
              "versionType": "semver"
            }
          ],
          "defaultStatus": "unaffected"
        },
        {
          "vendor": "Contec Co., Ltd.",
          "product": "FXA5020-[][]",
          "versions": [
            {
              "status": "affected",
              "version": "0",
              "lessThan": "1.12.00",
              "versionType": "semver"
            }
          ],
          "defaultStatus": "unaffected"
        },
        {
          "vendor": "Contec Co., Ltd.",
          "product": "FXE5000",
          "versions": [
            {
              "status": "affected",
              "version": "0",
              "lessThan": "1.12.00",
              "versionType": "semver"
            }
          ],
          "defaultStatus": "unaffected"
        },
        {
          "vendor": "Contec Co., Ltd.",
          "product": "FXE5000-[][]",
          "versions": [
            {
              "status": "affected",
              "version": "0",
              "lessThan": "1.12.00",
              "versionType": "semver"
            }
          ],
          "defaultStatus": "unaffected"
        },
        {
          "vendor": "Contec Co., Ltd.",
          "product": "FXS5000-[][]",
          "versions": [
            {
              "status": "affected",
              "version": "0",
              "lessThan": "1.12.00",
              "versionType": "semver"
            }
          ],
          "defaultStatus": "unaffected"
        },
        {
          "vendor": "Contec Co., Ltd.",
          "product": "FXS5021",
          "versions": [
            {
              "status": "affected",
              "version": "0",
              "lessThan": "1.12.00",
              "versionType": "semver"
            }
          ],
          "defaultStatus": "unaffected"
        },
        {
          "vendor": "Contec Co., Ltd.",
          "product": "FXE4000",
          "versions": [
            {
              "status": "affected",
              "version": "0",
              "lessThan": "1.14.00",
              "versionType": "semver"
            }
          ],
          "defaultStatus": "unaffected"
        },
        {
          "vendor": "Contec Co., Ltd.",
          "product": "FXE4000-WP",
          "versions": [
            {
              "status": "affected",
              "version": "0",
              "lessThan": "1.14.00",
              "versionType": "semver"
            }
          ],
          "defaultStatus": "unaffected"
        },
        {
          "vendor": "Contec Co., Ltd.",
          "product": "FXS4000",
          "versions": [
            {
              "status": "affected",
              "version": "0",
              "lessThan": "1.14.00",
              "versionType": "semver"
            }
          ],
          "defaultStatus": "unaffected"
        },
        {
          "vendor": "Contec Co., Ltd.",
          "product": "FXS4020",
          "versions": [
            {
              "status": "affected",
              "version": "0",
              "lessThan": "1.14.00",
              "versionType": "semver"
            }
          ],
          "defaultStatus": "unaffected"
        },
        {
          "vendor": "Contec Co., Ltd.",
          "product": "FXA3000",
          "versions": [
            {
              "status": "affected",
              "version": "0",
              "lessThan": "1.20.00",
              "versionType": "semver"
            }
          ],
          "defaultStatus": "unaffected"
        },
        {
          "vendor": "Contec Co., Ltd.",
          "product": "FXA3000-[][]",
          "versions": [
            {
              "status": "affected",
              "version": "0",
              "lessThan": "1.20.00",
              "versionType": "semver"
            }
          ],
          "defaultStatus": "unaffected"
        },
        {
          "vendor": "Contec Co., Ltd.",
          "product": "FXA3020",
          "versions": [
            {
              "status": "affected",
              "version": "0",
              "lessThan": "1.20.00",
              "versionType": "semver"
            }
          ],
          "defaultStatus": "unaffected"
        },
        {
          "vendor": "Contec Co., Ltd.",
          "product": "FXA3020-[][]",
          "versions": [
            {
              "status": "affected",
              "version": "0",
              "lessThan": "1.20.00",
              "versionType": "semver"
            }
          ],
          "defaultStatus": "unaffected"
        },
        {
          "vendor": "Contec Co., Ltd.",
          "product": "FXA3200",
          "versions": [
            {
              "status": "affected",
              "version": "0",
              "lessThan": "1.20.00",
              "versionType": "semver"
            }
          ],
          "defaultStatus": "unaffected"
        },
        {
          "vendor": "Contec Co., Ltd.",
          "product": "FXE3000",
          "versions": [
            {
              "status": "affected",
              "version": "0",
              "lessThan": "1.20.00",
              "versionType": "semver"
            }
          ],
          "defaultStatus": "unaffected"
        },
        {
          "vendor": "Contec Co., Ltd.",
          "product": "FXE3000-[][]",
          "versions": [
            {
              "status": "affected",
              "version": "0",
              "lessThan": "1.20.00",
              "versionType": "semver"
            }
          ],
          "defaultStatus": "unaffected"
        },
        {
          "vendor": "Contec Co., Ltd.",
          "product": "FXE3000-WP",
          "versions": [
            {
              "status": "affected",
              "version": "0",
              "lessThan": "1.20.00",
              "versionType": "semver"
            }
          ],
          "defaultStatus": "unaffected"
        },
        {
          "vendor": "Contec Co., Ltd.",
          "product": "FXS300[]-CN",
          "versions": [
            {
              "status": "affected",
              "version": "0",
              "lessThan": "1.20.00",
              "versionType": "semver"
            }
          ],
          "defaultStatus": "unaffected"
        }
      ]
    }
  ],
  "published": "2026-09-14T07:17:17.040",
  "references": [
    {
      "url": "https://jvn.jp/en/vu/JVNVU99009004/",
      "source": "vultures@jpcert.or.jp"
    },
    {
      "url": "https://www.contec.com/api/downloadlogger?download=/-/media/Contec/support/security-info/2026/contec_security_fl_26091000_en.pdf",
      "source": "vultures@jpcert.or.jp"
    }
  ],
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "vultures@jpcert.or.jp",
      "description": [
        {
          "lang": "en",
          "value": "CWE-78"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Improper neutralization of special elements used in an OS command ('OS Command Injection') issue exists in Contec FX5000 series, FX4000 series, and FX3000 series. If this vulnerability is exploited, an arbitrary OS command may be executed by an attacker who can log in to the product."
    }
  ],
  "lastModified": "2026-09-16T19:27:25.623",
  "sourceIdentifier": "vultures@jpcert.or.jp"
}