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CVE-2021-34403

Estado: ModificadaAlta (7.8)—

NVIDIA Linux distributions contain a vulnerability in nvmap ioctl, which allows any user with a local account to exploit a use-after-free condition, leading to code privilege escalation, loss of confidentiality and integrity, or denial of service.

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)

Nvidia — Shield Experience

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2021-34403",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
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        "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
      }
    ],
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        "type": "Secondary",
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          "baseScore": 7.8,
          "attackVector": "LOCAL",
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          "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",
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      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
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          "confidentialityImpact": "HIGH"
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  "affected": [
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      "source": "psirt@nvidia.com",
      "affectedData": [
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          "vendor": "NVIDIA",
          "product": "SHIELD TV",
          "versions": [
            {
              "status": "affected",
              "version": "All versions prior to SE 9.0"
            }
          ]
        }
      ]
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  ],
  "published": "2022-01-18T18:15:07.983",
  "references": [
    {
      "url": "https://nvidia.custhelp.com/app/answers/detail/a_id/5259",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "psirt@nvidia.com"
    },
    {
      "url": "https://nvidia.custhelp.com/app/answers/detail/a_id/5259",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-416"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "NVIDIA Linux distributions contain a vulnerability in nvmap ioctl, which allows any user with a local account to exploit a use-after-free condition, leading to code privilege escalation, loss of confidentiality and integrity, or denial of service."
    },
    {
      "lang": "es",
      "value": "Las distribuciones de Linux de NVIDIA contienen una vulnerabilidad en la ioctl nvmap, que permite a cualquier usuario con una cuenta local explotar una condición de uso de memoria previamente liberada, conllevando a una escalada de privilegios del código, pérdida de confidencialidad e integridad o denegación de servicio"
    }
  ],
  "lastModified": "2026-06-17T03:55:47.647",
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  "sourceIdentifier": "psirt@nvidia.com"
}