CVE-2025-3321

Estado: AplazadaCrítica (9.4)—

A predefined administrative account is not documented and cannot be deactivated. This account cannot be misused from the network, only by local users on the server.

CVSS

Versión: 4.0
Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/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: 9.4

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 0.17%
Percentil entre todas las CVEs puntuadas: 5
Fecha de la puntuación: 5/10/2026

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.

ExplotaciónT1068 Exploitation for Privilege Escalationprivilege escalation90 %
Impacto principalT1078.001 Default Accountsstealth · persistence · privilege escalation · initial access85 %

Acceso local sin interacción (AV:L, PR:N, UI:N) a cuenta administrativa predefinida no documentada. CWE-798 (credenciales hardcodeadas). Escalada de privilegios con acceso administrativo.

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

Threat Intelligence Program Password Policies Multi-factor Authentication Execution Prevention Application Isolation and Sandboxing Exploit Protection

CWE

CWE-798

Referencias

https://www.bbraun.com/productsecurity

JSON original (NVD)

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{
  "id": "CVE-2025-3321",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-3321",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-06-06T17:42:18.841236Z"
        }
      }
    ],
    "cvssMetricV40": [
      {
        "type": "Secondary",
        "source": "productsecurity@bbraun.com",
        "cvssData": {
          "Safety": "NOT_DEFINED",
          "version": "4.0",
          "Recovery": "NOT_DEFINED",
          "baseScore": 9.4,
          "Automatable": "NOT_DEFINED",
          "attackVector": "LOCAL",
          "baseSeverity": "CRITICAL",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/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": "HIGH",
          "vulnIntegrityImpact": "HIGH",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "subAvailabilityImpact": "HIGH",
          "vulnAvailabilityImpact": "HIGH",
          "availabilityRequirement": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "subConfidentialityImpact": "HIGH",
          "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"
        }
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  },
  "affected": [
    {
      "source": "productsecurity@bbraun.com",
      "affectedData": [
        {
          "vendor": "B. Braun Melsungen AG",
          "product": "OnlineSuite",
          "versions": [
            {
              "status": "affected",
              "version": "3.0",
              "versionType": "custom"
            }
          ],
          "defaultStatus": "unaffected"
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  ],
  "published": "2025-06-06T08:15:21.183",
  "references": [
    {
      "url": "https://www.bbraun.com/productsecurity",
      "source": "productsecurity@bbraun.com"
    }
  ],
  "vulnStatus": "Deferred",
  "weaknesses": [
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      "source": "productsecurity@bbraun.com",
      "description": [
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        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A predefined administrative account is not documented and cannot\nbe deactivated. This account cannot be misused from the network, only by local\nusers on the server."
    },
    {
      "lang": "es",
      "value": "Una cuenta administrativa predefinida no está documentada y no se puede desactivar. Esta cuenta no puede ser utilizada indebidamente desde la red, solo por usuarios locales en el servidor."
    }
  ],
  "lastModified": "2026-06-17T09:19:39.833",
  "sourceIdentifier": "productsecurity@bbraun.com"
}