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CVE-2020-7586

Estado: ModificadaAlta (7.8)—

A vulnerability has been identified in SIMATIC PCS 7 V8.2 and earlier (All versions), SIMATIC PCS 7 V9.0 (All versions < V9.0 SP3), SIMATIC PDM (All versions < V9.2), SIMATIC STEP 7 V5.X (All versions < V5.6 SP2 HF3), SINAMICS STARTER (containing STEP 7 OEM version) (All versions < V5.4 HF2). A buffer overflow vulnerability could allow a local attacker to cause a Denial-of-Service situation. The security vulnerability could be exploited by an attacker with local access to the affected systems. Successful exploitation requires user privileges but no user interaction. The vulnerability could allow an attacker to compromise the availability of the system as well as to have access to confidential information.

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 (4)

Siemens — Simatic PCS 7Siemens — Simatic Process Device ManagerSiemens — Simatic Step 7Siemens — Sinamics Starter

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2020-7586",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 4.6,
          "accessVector": "LOCAL",
          "vectorString": "AV:L/AC:L/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "MEDIUM",
        "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": 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"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 1.8
      }
    ]
  },
  "affected": [
    {
      "source": "productcert@siemens.com",
      "affectedData": [
        {
          "vendor": "Siemens",
          "product": "SIMATIC PCS 7 V8.2 and earlier",
          "versions": [
            {
              "status": "affected",
              "version": "All versions"
            }
          ]
        },
        {
          "vendor": "Siemens",
          "product": "SIMATIC PCS 7 V9.0",
          "versions": [
            {
              "status": "affected",
              "version": "All versions < V9.0 SP3"
            }
          ]
        },
        {
          "vendor": "Siemens",
          "product": "SIMATIC PDM",
          "versions": [
            {
              "status": "affected",
              "version": "All versions < V9.2"
            }
          ]
        },
        {
          "vendor": "Siemens",
          "product": "SIMATIC STEP 7 V5.X",
          "versions": [
            {
              "status": "affected",
              "version": "All versions < V5.6 SP2 HF3"
            }
          ]
        },
        {
          "vendor": "Siemens",
          "product": "SINAMICS STARTER (containing STEP 7 OEM version)",
          "versions": [
            {
              "status": "affected",
              "version": "All versions < V5.4 HF2"
            }
          ]
        }
      ]
    }
  ],
  "published": "2020-06-10T17:15:12.520",
  "references": [
    {
      "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-689942.pdf",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "productcert@siemens.com"
    },
    {
      "url": "https://us-cert.cisa.gov/ics/advisories/icsa-20-161-05",
      "source": "productcert@siemens.com"
    },
    {
      "url": "https://www.us-cert.gov/ics/advisories/icsa-20-161-05",
      "tags": [
        "Third Party Advisory",
        "US Government Resource"
      ],
      "source": "productcert@siemens.com"
    },
    {
      "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-689942.pdf",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://us-cert.cisa.gov/ics/advisories/icsa-20-161-05",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.us-cert.gov/ics/advisories/icsa-20-161-05",
      "tags": [
        "Third Party Advisory",
        "US Government Resource"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "productcert@siemens.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-122"
        }
      ]
    },
    {
      "type": "Secondary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-787"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A vulnerability has been identified in SIMATIC PCS 7 V8.2 and earlier (All versions), SIMATIC PCS 7 V9.0 (All versions < V9.0 SP3), SIMATIC PDM (All versions < V9.2), SIMATIC STEP 7 V5.X (All versions < V5.6 SP2 HF3), SINAMICS STARTER (containing STEP 7 OEM version) (All versions < V5.4 HF2). A buffer overflow vulnerability could allow a local attacker to cause a Denial-of-Service situation. The security vulnerability could be exploited by an attacker with local access to the affected systems. Successful exploitation requires user privileges but no user interaction. The vulnerability could allow an attacker to compromise the availability of the system as well as to have access to confidential information."
    },
    {
      "lang": "es",
      "value": "Se ha identificado una vulnerabilidad en SIMATIC PCS 7 versión V8.2 y anteriores (Todas las versiones), SIMATIC PCS 7 V9.0 (Todas las versiones anteriores a V9.0 SP3), SIMATIC PDM (Todas las versiones anteriores a V9.2), SIMATIC STEP 7 V5.X (Todas las versiones anteriores a V5.6 SP2 HF3), SINAMICS STARTER (containing STEP 7 OEM version) (Todas las versiones anteriores a V5.4 HF2). Una vulnerabilidad de desbordamiento del búfer podría permitir a un atacante local causar una situación de Denegación de Servicio. La vulnerabilidad de seguridad podría ser explotada por parte de un atacante con acceso local a los sistemas afectados. Una explotación con éxito podría requerir privilegios de usuario pero no una interacción del usuario. La vulnerabilidad podría permitir a un atacante comprometer la disponibilidad del sistema, así como tener acceso a información confidencial"
    }
  ],
  "lastModified": "2026-06-17T03:25:04.103",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
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              "criteria": "cpe:2.3:a:siemens:simatic_pcs_7:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "13E3BDF0-B691-4A97-A74A-A65EC910480E"
            },
            {
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              "vulnerable": true,
              "matchCriteriaId": "50C02E17-87F5-47DB-B4F3-EFC44B0DFC88"
            },
            {
              "criteria": "cpe:2.3:a:siemens:simatic_step_7:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "CAF09D6E-3375-4731-B16D-30B7592EA5FB",
              "versionEndExcluding": "5.6"
            },
            {
              "criteria": "cpe:2.3:a:siemens:simatic_step_7:5.6:-:*:*:*:*:*:*",
              "vulnerable": true,
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            },
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              "vulnerable": true,
              "matchCriteriaId": "06A86DA0-BC1F-4306-B02E-ED2FA36BE273"
            },
            {
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              "vulnerable": true,
              "matchCriteriaId": "23020179-5112-48A8-BA76-EB6C073867BF",
              "versionEndExcluding": "5.4"
            },
            {
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              "vulnerable": true,
              "matchCriteriaId": "E04348B3-6DAC-49E2-A612-FE0A3166776B"
            }
          ],
          "operator": "OR"
        }
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  ],
  "sourceIdentifier": "productcert@siemens.com"
}