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CVE-2025-43879

Estado: AplazadaCrítica (9.3)—

WRH-733GBK and WRH-733GWH contain an improper neutralization of special elements used in an OS command ('OS Command Injection') vulnerability in the telnet function. If a remote unauthenticated attacker sends a specially crafted request to the affected product, an arbitrary OS command may be executed.

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).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

Vector CVSS 4.0 con AV:N/PR:N/UI:N indica acceso remoto sin autenticación. CWE-78 (OS Command Injection) en función telnet remota ejecuta comandos arbitrarios en el SO.

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 ManagementVulnerability ScanningRestrict Web-Based ContentNetwork SegmentationLimit Software InstallationLimit Access to Resource Over Network

Tecnologías afectadas (2)

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

Buffalo — Wrh-733gbkAIBuffalo — Wrh-733gwhAI

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2025-43879",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-43879",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-06-24T14:31:28.774097Z"
        }
      }
    ],
    "cvssMetricV30": [
      {
        "type": "Secondary",
        "source": "vultures@jpcert.or.jp",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.0",
          "baseScore": 9.8,
          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 3.9
      }
    ],
    "cvssMetricV40": [
      {
        "type": "Secondary",
        "source": "vultures@jpcert.or.jp",
        "cvssData": {
          "Safety": "NOT_DEFINED",
          "version": "4.0",
          "Recovery": "NOT_DEFINED",
          "baseScore": 9.3,
          "Automatable": "NOT_DEFINED",
          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/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": "NONE",
          "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": "ELECOM CO.,LTD.",
          "product": "WRH-733GBK",
          "versions": [
            {
              "status": "affected",
              "version": "all versions"
            }
          ]
        },
        {
          "vendor": "ELECOM CO.,LTD.",
          "product": "WRH-733GWH",
          "versions": [
            {
              "status": "affected",
              "version": "all versions"
            }
          ]
        }
      ]
    }
  ],
  "published": "2025-06-24T05:15:24.567",
  "references": [
    {
      "url": "https://jvn.jp/en/jp/JVN39435597/",
      "source": "vultures@jpcert.or.jp"
    },
    {
      "url": "https://www.elecom.co.jp/news/security/20250624-02/",
      "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": "WRH-733GBK and WRH-733GWH contain an improper neutralization of special elements used in an OS command ('OS Command Injection') vulnerability in the telnet function. If a remote unauthenticated attacker sends a specially crafted request to the affected product, an arbitrary OS command may be executed."
    },
    {
      "lang": "es",
      "value": "WRH-733GBK y WRH-733GWH contienen una vulnerabilidad de neutralización incorrecta de elementos especiales utilizados en un comando del sistema operativo ('Inyección de comandos del sistema operativo') en la función Telnet. Si un atacante remoto no autenticado envía una solicitud especialmente manipulada al producto afectado, podría ejecutarse un comando arbitrario del sistema operativo."
    }
  ],
  "lastModified": "2026-06-17T09:24:41.110",
  "sourceIdentifier": "vultures@jpcert.or.jp"
}