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CVE-2020-25231

Estado: ModificadaMedia (5.5)—

A vulnerability has been identified in LOGO! 8 BM (incl. SIPLUS variants) (All versions < V8.3), LOGO! Soft Comfort (All versions < V8.3). The encryption of program data for the affected devices uses a static key. An attacker could use this key to extract confidential information from protected program files.

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).

Tecnologías afectadas (2)

Siemens — Logo! 8 BM FirmwareSiemens — Logo! Soft Comfort

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2020-25231",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 2.1,
          "accessVector": "LOCAL",
          "vectorString": "AV:L/AC:L/Au:N/C:P/I:N/A:N",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "LOW",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 3.9,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 5.5,
          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 1.8
      }
    ]
  },
  "affected": [
    {
      "source": "productcert@siemens.com",
      "affectedData": [
        {
          "vendor": "Siemens",
          "product": "LOGO! 8 BM (incl. SIPLUS variants)",
          "versions": [
            {
              "status": "affected",
              "version": "All versions < V8.3"
            }
          ]
        },
        {
          "vendor": "Siemens",
          "product": "LOGO! Soft Comfort",
          "versions": [
            {
              "status": "affected",
              "version": "All versions < V8.3"
            }
          ]
        }
      ]
    }
  ],
  "published": "2020-12-14T21:15:19.927",
  "references": [
    {
      "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-480824.pdf",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "productcert@siemens.com"
    },
    {
      "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-480824.pdf",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "productcert@siemens.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-321"
        }
      ]
    },
    {
      "type": "Secondary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-798"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A vulnerability has been identified in LOGO! 8 BM (incl. SIPLUS variants) (All versions < V8.3), LOGO! Soft Comfort (All versions < V8.3). The encryption of program data for the affected devices uses a static key. An attacker could use this key to extract confidential information from protected program files."
    },
    {
      "lang": "es",
      "value": "Se ha identificado una vulnerabilidad en LOGO!&#xa0;8 BM (incluyendo variantes SIPLUS) (todas las versiones anteriores a V8.3), LOGO!&#xa0;Soft Comfort (todas las versiones anteriores a V8.3).&#xa0;El cifrado de datos del programa para los dispositivos afectados utiliza una clave estática.&#xa0;Un atacante podría usar esta clave para extraer información confidencial de archivos de programa protegidos"
    }
  ],
  "lastModified": "2026-06-17T03:06:37.660",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
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              "vulnerable": true,
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              "versionEndExcluding": "8.3"
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          "operator": "OR"
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  "sourceIdentifier": "productcert@siemens.com"
}