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CVE-2021-42774

Estado: ModificadaCrítica (9.8)—

Broadcom Emulex HBA Manager/One Command Manager versions before 11.4.425.0 and 12.8.542.31, if not installed in Strictly Local Management mode, have a buffer overflow vulnerability in the remote firmware download feature that could allow remote unauthenticated users to perform various attacks. In non-secure mode, the user is unauthenticated.

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)

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2021-42774",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 7.5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/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": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
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        "type": "Primary",
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        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 9.8,
          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 3.9
      }
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  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
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  ],
  "published": "2021-11-12T02:15:06.800",
  "references": [
    {
      "url": "https://docs.broadcom.com/doc/elx_HBAManager-Lin-RN12811-101.pdf",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://www.broadcom.com/products/storage/fibre-channel-host-bus-adapters/emulex-hba-manager",
      "tags": [
        "Product"
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      "source": "cve@mitre.org"
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    {
      "url": "https://docs.broadcom.com/doc/elx_HBAManager-Lin-RN12811-101.pdf",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.broadcom.com/products/storage/fibre-channel-host-bus-adapters/emulex-hba-manager",
      "tags": [
        "Product"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-120"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Broadcom Emulex HBA Manager/One Command Manager versions before 11.4.425.0 and 12.8.542.31, if not installed in Strictly Local Management mode, have a buffer overflow vulnerability in the remote firmware download feature that could allow remote unauthenticated users to perform various attacks. In non-secure mode, the user is unauthenticated."
    },
    {
      "lang": "es",
      "value": "Broadcom Emulex HBA Manager/One Command Manager versiones anteriores a 11.4.425.0 y 12.8.542.31, si no se instalan en modo de administración estrictamente local, presentan una vulnerabilidad de desbordamiento de búfer en la funcionalidad remote firmware download que podría permitir a usuarios remotos no autenticados llevar a cabo diversos ataques. En el modo no seguro, el usuario no está autenticado"
    }
  ],
  "lastModified": "2026-06-17T04:10:07.303",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
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              "versionEndExcluding": "11.4.425.0",
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            },
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          "operator": "OR"
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  "sourceIdentifier": "cve@mitre.org"
}