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CVE-2021-29795

Estado: ModificadaMedia (6)—

IBM PowerVM Hypervisor FW860, FW930, FW940, and FW950 could allow a local user to create a specially crafted sequence of hypervisor calls from a partition that could crash the system. IBM X-Force ID: 203557.

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)

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{
  "id": "CVE-2021-29795",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 4.9,
          "accessVector": "LOCAL",
          "vectorString": "AV:L/AC:L/Au:N/C:N/I:N/A:C",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 6.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 3.9,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV30": [
      {
        "type": "Secondary",
        "source": "psirt@us.ibm.com",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.0",
          "baseScore": 6,
          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "HIGH",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 4,
        "exploitabilityScore": 1.5
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.1",
          "baseScore": 6,
          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "HIGH",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 4,
        "exploitabilityScore": 1.5
      }
    ]
  },
  "affected": [
    {
      "source": "psirt@us.ibm.com",
      "affectedData": [
        {
          "vendor": "IBM",
          "product": "PowerVM Hypervisor",
          "versions": [
            {
              "status": "affected",
              "version": "FW930"
            },
            {
              "status": "affected",
              "version": "FW940"
            },
            {
              "status": "affected",
              "version": "FW950"
            },
            {
              "status": "affected",
              "version": "FW860"
            }
          ]
        }
      ]
    }
  ],
  "published": "2021-09-21T16:15:07.977",
  "references": [
    {
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/203557",
      "tags": [
        "VDB Entry",
        "Vendor Advisory"
      ],
      "source": "psirt@us.ibm.com"
    },
    {
      "url": "https://www.ibm.com/support/pages/node/6490877",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "source": "psirt@us.ibm.com"
    },
    {
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/203557",
      "tags": [
        "VDB Entry",
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.ibm.com/support/pages/node/6490877",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-74"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "IBM PowerVM Hypervisor FW860, FW930, FW940, and FW950 could allow a local user to create a specially crafted sequence of hypervisor calls from a partition that could crash the system. IBM X-Force ID: 203557."
    },
    {
      "lang": "es",
      "value": "IBM PowerVM Hypervisor FW860, FW930, FW940 y FW950, podría permitir a un usuario local crear una secuencia especialmente diseñada de llamadas al hypervisor desde una partición que podría bloquear el sistema. IBM X-Force ID: 203557"
    }
  ],
  "lastModified": "2026-06-17T03:48:18.270",
  "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:fw930:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "FBD55D95-2969-4C64-A8E4-5BCE9BE4DE81"
            },
            {
              "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"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "psirt@us.ibm.com"
}