CVE-2026-24247

Estado: AnalizadaAlta (7.8)—

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

CVSS

Versión: 3.1
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Puntuación base: 7.8

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 0.43%
Percentil entre todas las CVEs puntuadas: 35
Fecha de la puntuación: 6/10/2026

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.

ExplotaciónT1203 Exploitation for Client Executionexecution85 %
Impacto principalT1059 Command and Scripting Interpreterexecution90 %
Impacto secundarioT1005 Data from Local Systemcollection75 %
Impacto secundarioT1068 Exploitation for Privilege Escalationprivilege escalation80 %

AV:L + UI:R indica ejecución en cliente (archivo malformado desserializado). CWE-502 (desserialización insegura) permite ejecución de código (T1059), escalada local (T1068) e información disclosure (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

Execution Prevention Application Isolation and Sandboxing Exploit Protection Update Software Threat Intelligence Program Restrict Web-Based Content

Tecnologías afectadas (1)

Nvidia — Nemo Megatron Bridge

CWE

CWE-502

Referencias

JSON original (NVD)

Mostrar

{
  "id": "CVE-2026-24247",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-24247",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-07-01T15:58:58.738086Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "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:N/UI:R/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 1.8
      }
    ]
  },
  "affected": [
    {
      "source": "psirt@nvidia.com",
      "affectedData": [
        {
          "vendor": "NVIDIA",
          "product": "Megatron-Bridge",
          "versions": [
            {
              "status": "affected",
              "version": "Versions 0.0 to 0.4.0"
            }
          ],
          "platforms": [
            "All platforms"
          ],
          "defaultStatus": "unaffected"
        }
      ]
    }
  ],
  "published": "2026-07-01T16:16:45.133",
  "references": [
    {
      "url": "https://github.com/NVIDIA/product-security/tree/main/2026/5841",
      "tags": [
        "Product"
      ],
      "source": "psirt@nvidia.com"
    },
    {
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-24247",
      "tags": [
        "Third Party Advisory",
        "US Government Resource"
      ],
      "source": "psirt@nvidia.com"
    },
    {
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-24247",
      "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 for Linux contains a vulnerability where an attacker could cause deserialization of untrusted data. A successful exploit of this vulnerability might lead to code execution, escalation of privileges, data tampering, and information disclosure."
    }
  ],
  "lastModified": "2026-07-02T14:55:56.227",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:nvidia:nemo_megatron_bridge:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "9E566310-44A4-4BA7-BBA2-EA6F7C4AF251",
              "versionEndExcluding": "0.4.1"
            }
          ],
          "operator": "OR"
        },
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "703AF700-7A70-47E2-BC3A-7FD03B3CA9C1"
            }
          ],
          "operator": "OR"
        }
      ],
      "operator": "AND"
    }
  ],
  "sourceIdentifier": "psirt@nvidia.com"
}