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CVE-2021-38917

Estado: ModificadaCrítica (9.1)—

IBM PowerVM Hypervisor FW860, FW940, and FW950 could allow an attacker that gains service access to the FSP can read and write arbitrary host system memory through a series of carefully crafted service procedures. IBM X-Force ID: 210018.

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 (1)

IBM — Powervm Hypervisor

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2021-38917",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 9.4,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:C/I:C/A:N",
          "authentication": "NONE",
          "integrityImpact": "COMPLETE",
          "accessComplexity": "LOW",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "COMPLETE"
        },
        "acInsufInfo": false,
        "impactScore": 9.2,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV30": [
      {
        "type": "Secondary",
        "source": "psirt@us.ibm.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.0",
          "baseScore": 7.4,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.2,
        "exploitabilityScore": 2.2
      }
    ],
    "cvssMetricV31": [
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        "type": "Primary",
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        "cvssData": {
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          "version": "3.1",
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          "confidentialityImpact": "HIGH"
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        "impactScore": 5.2,
        "exploitabilityScore": 3.9
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  },
  "affected": [
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      "affectedData": [
        {
          "vendor": "IBM",
          "product": "PowerVM Hypervisor",
          "versions": [
            {
              "status": "affected",
              "version": "FW940"
            },
            {
              "status": "affected",
              "version": "FW950"
            },
            {
              "status": "affected",
              "version": "FW860"
            }
          ]
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  ],
  "published": "2021-12-10T18:15:07.847",
  "references": [
    {
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/210018",
      "tags": [
        "VDB Entry",
        "Vendor Advisory"
      ],
      "source": "psirt@us.ibm.com"
    },
    {
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      "tags": [
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      ],
      "source": "psirt@us.ibm.com"
    },
    {
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/210018",
      "tags": [
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        "Vendor Advisory"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
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      "url": "https://www.ibm.com/support/pages/node/6525010",
      "tags": [
        "Vendor Advisory"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "IBM PowerVM Hypervisor FW860, FW940, and FW950 could allow an attacker that gains service access to the FSP can read and write arbitrary host system memory through a series of carefully crafted service procedures. IBM X-Force ID: 210018."
    },
    {
      "lang": "es",
      "value": "IBM PowerVM Hypervisor FW860, FW940 y FW950, podría permitir a un atacante que consiga acceso de servicio al FSP pueda leer y escribir en la memoria del sistema anfitrión de forma arbitraria mediante una serie de procedimientos de servicio cuidadosamente diseñados. IBM X-Force ID: 210018"
    }
  ],
  "lastModified": "2026-06-17T04:02:49.663",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
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              "vulnerable": true,
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            },
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              "vulnerable": true,
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            },
            {
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              "vulnerable": true,
              "matchCriteriaId": "84837FC8-545A-44B4-8144-F8DC8EBCB165"
            }
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          "operator": "OR"
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  "sourceIdentifier": "psirt@us.ibm.com"
}