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CVE-2025-33248

Estado: AnalizadaAlta (7.8)—

NVIDIA Megatron-LM contains a vulnerability in the hybrid conversion script where an Attacker may cause an RCE by convincing a user to load a maliciously crafted file. A successful exploit of this vulnerability may lead to code execution, escalation of privileges, information disclosure, and data tampering.

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).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

AV:L + UI:R indica ejecución en cliente (T1203): usuario carga archivo malicioso. RCE → T1059. Escalada de privilegios mencionada explícitamente → T1548. Divulgación de información → T1005.

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Privileged Account ManagementExecution PreventionAuditUpdate SoftwareUser Account ManagementRestrict Web-Based Content

Tecnologías afectadas (1)

Nvidia — Megatron-lm

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2025-33248",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-33248",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-03-25T14:02:31.655164Z"
        }
      }
    ],
    "cvssMetricV31": [
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        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
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          "attackVector": "LOCAL",
          "baseSeverity": "HIGH",
          "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",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 1.8
      },
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
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          "integrityImpact": "HIGH",
          "userInteraction": "REQUIRED",
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          "availabilityImpact": "HIGH",
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          "confidentialityImpact": "HIGH"
        },
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      }
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  },
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      "source": "psirt@nvidia.com",
      "affectedData": [
        {
          "vendor": "NVIDIA",
          "product": "Megatron LM",
          "versions": [
            {
              "status": "affected",
              "version": "All versions prior to 0.15.3"
            }
          ],
          "platforms": [
            "All platforms"
          ],
          "defaultStatus": "unaffected"
        }
      ]
    }
  ],
  "published": "2026-03-24T21:16:24.767",
  "references": [
    {
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-33248",
      "tags": [
        "Third Party Advisory",
        "US Government Resource"
      ],
      "source": "psirt@nvidia.com"
    },
    {
      "url": "https://nvidia.custhelp.com/app/answers/detail/a_id/5769",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "psirt@nvidia.com"
    },
    {
      "url": "https://www.cve.org/CVERecord?id=CVE-2025-33248",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "psirt@nvidia.com"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "psirt@nvidia.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-502"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "NVIDIA Megatron-LM contains a vulnerability in the hybrid conversion script where an Attacker may cause an RCE by convincing a user to load a maliciously crafted file. A successful exploit of this vulnerability may lead to code execution, escalation of privileges, information disclosure, and data tampering."
    },
    {
      "lang": "es",
      "value": "NVIDIA Megatron-LM contiene una vulnerabilidad en el script de conversión híbrida donde un atacante puede causar una RCE al convencer a un usuario de cargar un archivo creado maliciosamente. Un exploit exitoso de esta vulnerabilidad puede conducir a la ejecución de código, escalada de privilegios, revelación de información y manipulación de datos."
    }
  ],
  "lastModified": "2026-06-17T09:13:18.403",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:nvidia:megatron-lm:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "05221D08-E8D5-4CBE-8B4E-8CE4C8176AB4",
              "versionEndExcluding": "0.15.3"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "psirt@nvidia.com"
}