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CVE-2021-38918

Estado: ModificadaAlta (7.5)—

IBM PowerVM Hypervisor FW860, FW940, FW950, and FW1010, through a specific sequence of VM management operations could lead to a violation of the isolation between peer VMs. IBM X-Force ID: 210019.

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-2021-38918",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/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": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV30": [
      {
        "type": "Secondary",
        "source": "psirt@us.ibm.com",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.0",
          "baseScore": 8.6,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 4,
        "exploitabilityScore": 3.9
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.5,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "psirt@us.ibm.com",
      "affectedData": [
        {
          "vendor": "IBM",
          "product": "PowerVM Hypervisor",
          "versions": [
            {
              "status": "affected",
              "version": "FW940"
            },
            {
              "status": "affected",
              "version": "FW950"
            },
            {
              "status": "affected",
              "version": "FW860"
            },
            {
              "status": "affected",
              "version": "FW1010"
            }
          ]
        }
      ]
    }
  ],
  "published": "2022-01-05T17:15:09.190",
  "references": [
    {
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/210019",
      "tags": [
        "VDB Entry",
        "Vendor Advisory"
      ],
      "source": "psirt@us.ibm.com"
    },
    {
      "url": "https://www.ibm.com/support/pages/node/6525032",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "psirt@us.ibm.com"
    },
    {
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/210019",
      "tags": [
        "VDB Entry",
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.ibm.com/support/pages/node/6525032",
      "tags": [
        "Vendor Advisory"
      ],
      "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, FW950, and FW1010, through a specific sequence of VM management operations could lead to a violation of the isolation between peer VMs. IBM X-Force ID: 210019."
    },
    {
      "lang": "es",
      "value": "IBM PowerVM Hypervisor FW860, FW940, FW950 y FW1010, mediante una secuencia específica de operaciones de administración de máquinas virtuales podría conllevar a una violación del aislamiento entre máquinas virtuales iguales. IBM X-Force ID: 210019."
    }
  ],
  "lastModified": "2026-06-17T04:02:49.767",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:ibm:powervm_hypervisor:fw860:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "78060DAF-4A3C-4CBC-92DB-FB5CF8E54ECB"
            },
            {
              "criteria": "cpe:2.3:o:ibm:powervm_hypervisor:fw940:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "D9685283-13BE-474E-A09E-66AF9A72B9E9"
            },
            {
              "criteria": "cpe:2.3:o:ibm:powervm_hypervisor:fw950:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "84837FC8-545A-44B4-8144-F8DC8EBCB165"
            },
            {
              "criteria": "cpe:2.3:o:ibm:powervm_hypervisor:fw1010:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "9A129D1C-318D-4755-8654-FC6BA978ADE0"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "psirt@us.ibm.com"
}