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CVE-2026-61775

Estado: AnalizadaAlta (7.8)—

NVIDIA Megatron Bridge contains a vulnerability where an attacker could cause a deserialization of untrusted data. A successful exploit of this vulnerability might lead to code execution, data tampering, and information disclosure.

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.

Vector AV:L/PR:L indica acceso local con privilegios, CWE-502 (deserialization) permite ejecución de código tras escalada. Datos, manipulación e información revelada confirmados en descripción.

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

Tecnologías afectadas (1)

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2026-61775",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-61775",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-09-01T16:18:28.198407Z"
        }
      }
    ],
    "cvssMetricV31": [
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        "type": "Secondary",
        "source": "psirt@nvidia.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.8,
          "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
      }
    ]
  },
  "affected": [
    {
      "source": "psirt@nvidia.com",
      "affectedData": [
        {
          "vendor": "NVIDIA",
          "product": "Megatron Bridge",
          "versions": [
            {
              "status": "affected",
              "version": "0.0 to 0.5.0"
            }
          ],
          "platforms": [
            "All platforms"
          ],
          "defaultStatus": "unaffected"
        }
      ]
    }
  ],
  "published": "2026-09-01T16:17:12.477",
  "references": [
    {
      "url": "https://github.com/NVIDIA/product-security/tree/main/2026/5868",
      "tags": [
        "Product"
      ],
      "source": "psirt@nvidia.com"
    },
    {
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-61775",
      "tags": [
        "Third Party Advisory",
        "US Government Resource"
      ],
      "source": "psirt@nvidia.com"
    },
    {
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-61775",
      "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 Bridge contains a vulnerability where an attacker could cause a deserialization of untrusted data. A successful exploit of this vulnerability might lead to code execution, data tampering, and information disclosure."
    }
  ],
  "lastModified": "2026-09-02T12:30:50.493",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:nvidia:nemo_megatron_bridge:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "60CA6F69-AB64-4173-A4E7-9E9E32F7E6DB",
              "versionEndExcluding": "0.5.1"
            }
          ],
          "operator": "OR"
        }
      ]
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  ],
  "sourceIdentifier": "psirt@nvidia.com"
}