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CVE-2025-15679

Estado: AplazadaAlta (7.3)—

Under certain circumstances such as reset to factory default operation, the BMC root account is made active without a password on BullSequana XH3406 and XH3515.

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.

Acceso local sin autenticación a cuenta root tras reset a fábrica (CWE-258: Hard-coded Password). Permite escalada inmediata de privilegios y ejecución de comandos en BMC.

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 ManagementMulti-factor AuthenticationExecution PreventionDisable or Remove Feature or ProgramUser Account ManagementThreat Intelligence Program

Tecnologías afectadas (2)

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

Atos — Bullsequana Xh3406AIAtos — Bullsequana Xh3515AI

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2025-15679",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-15679",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-09-11T15:23:45.592824Z"
        }
      }
    ],
    "cvssMetricV40": [
      {
        "type": "Secondary",
        "source": "5bcc34ac-0282-4e8a-96fc-046c583d3048",
        "cvssData": {
          "Safety": "PRESENT",
          "version": "4.0",
          "Recovery": "USER",
          "baseScore": 7.3,
          "Automatable": "NO",
          "attackVector": "LOCAL",
          "baseSeverity": "HIGH",
          "valueDensity": "CONCENTRATED",
          "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L/E:P/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:P/AU:N/R:U/V:C/RE:L/U:Clear",
          "exploitMaturity": "PROOF_OF_CONCEPT",
          "providerUrgency": "CLEAR",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "privilegesRequired": "NONE",
          "subIntegrityImpact": "LOW",
          "vulnIntegrityImpact": "HIGH",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "subAvailabilityImpact": "LOW",
          "vulnAvailabilityImpact": "HIGH",
          "availabilityRequirement": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "subConfidentialityImpact": "LOW",
          "vulnConfidentialityImpact": "HIGH",
          "confidentialityRequirement": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "vulnerabilityResponseEffort": "LOW",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED"
        }
      }
    ]
  },
  "affected": [
    {
      "source": "5bcc34ac-0282-4e8a-96fc-046c583d3048",
      "affectedData": [
        {
          "vendor": "Bull",
          "product": "BullSequana XH3406",
          "versions": [
            {
              "status": "affected",
              "version": "0",
              "lessThan": "TS 04.05",
              "versionType": "custom"
            }
          ],
          "defaultStatus": "unaffected"
        },
        {
          "vendor": "Bull",
          "product": "BullSequana XH3515",
          "versions": [
            {
              "status": "affected",
              "version": "0",
              "lessThan": "TS 43.01",
              "versionType": "custom"
            }
          ],
          "defaultStatus": "unaffected"
        }
      ]
    }
  ],
  "published": "2026-09-11T09:17:20.067",
  "references": [
    {
      "url": "https://myatos.my.site.com/psmcustomer/s/contentdocument/069ci00000eNzLYAA0",
      "source": "5bcc34ac-0282-4e8a-96fc-046c583d3048"
    }
  ],
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "5bcc34ac-0282-4e8a-96fc-046c583d3048",
      "description": [
        {
          "lang": "en",
          "value": "CWE-258"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Under certain circumstances such as reset to factory default operation, the BMC root account is made active without a password on BullSequana XH3406 and XH3515."
    }
  ],
  "lastModified": "2026-09-11T16:17:04.560",
  "sourceIdentifier": "5bcc34ac-0282-4e8a-96fc-046c583d3048"
}