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CVE-2025-40574

Estado: ModificadaAlta (8.5)—

A vulnerability has been identified in SCALANCE LPE9403 (6GK5998-3GS00-2AC2) (All versions < V4.0 HF0). Affected devices do not properly assign permissions to critical ressources. This could allow a non-privileged local attacker to interact with the backupmanager service.

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.

AV:L + PR:L sin UI:N indica escalada de privilegios local. CWE-732 (permisos incorrectos) permite acceso no autorizado a servicio crítico (backupmanager) desde usuario sin privilegios.

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 ProgramRestrict File and Directory PermissionsPrivileged Account ManagementExecution PreventionApplication Isolation and SandboxingExploit Protection

Tecnologías afectadas (1)

Siemens — Scalance Lpe9403 Firmware

CWE

Referencias

JSON original (NVD)

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          "role": "CISA Coordinator",
          "options": [
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              "exploitation": "none"
            },
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              "automatable": "no"
            },
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              "technicalImpact": "total"
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          "version": "2.0.3",
          "timestamp": "2025-05-13T18:16:23.182783Z"
        }
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          "version": "3.1",
          "baseScore": 7.8,
          "attackVector": "LOCAL",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:L/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"
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        "impactScore": 5.9,
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          "Recovery": "NOT_DEFINED",
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          "Automatable": "NOT_DEFINED",
          "attackVector": "LOCAL",
          "baseSeverity": "HIGH",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:L/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",
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          "subIntegrityImpact": "NONE",
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          "integrityRequirement": "NOT_DEFINED",
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          "subConfidentialityImpact": "NONE",
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          "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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      "source": "productcert@siemens.com",
      "affectedData": [
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          "vendor": "Siemens",
          "product": "SCALANCE LPE9403",
          "versions": [
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              "version": "0",
              "lessThan": "V4.0 HF0",
              "versionType": "custom"
            }
          ],
          "defaultStatus": "unknown"
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  ],
  "published": "2025-05-13T10:15:26.980",
  "references": [
    {
      "url": "https://cert-portal.siemens.com/productcert/html/ssa-327438.html",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "productcert@siemens.com"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "productcert@siemens.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-732"
        }
      ]
    }
  ],
  "descriptions": [
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      "lang": "en",
      "value": "A vulnerability has been identified in SCALANCE LPE9403 (6GK5998-3GS00-2AC2) (All versions < V4.0 HF0). Affected devices do not properly assign permissions to critical ressources.\r\nThis could allow a non-privileged local attacker to interact with the backupmanager service."
    },
    {
      "lang": "es",
      "value": "Se ha identificado una vulnerabilidad en SCALANCE LPE9403 (6GK5998-3GS00-2AC2) (todas las versiones). Los dispositivos afectados no asignan correctamente los permisos a recursos críticos. Esto podría permitir que un atacante local sin privilegios interactúe con el servicio BackupManager."
    }
  ],
  "lastModified": "2026-06-17T09:21:46.273",
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  "sourceIdentifier": "productcert@siemens.com"
}