« Volver al listado

CVE-2026-47307

Estado: AnalizadaAlta (7.5)—

NULL pointer dereference vulnerability in Samsung Open Source Walrus allows an attacker to cause a denial of service via a crafted WebAssembly module containing deeply nested instructions.

This issue affects Walrus: f339b8ee4ea701772e8ae640b3d1b12ac02b1ae9.

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.

Inferido por reglas deterministas a partir del vector CVSS y la CWE. Solo orientativo.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Filter Network TrafficVulnerability ScanningPrivileged Account ManagementNetwork SegmentationLimit Access to Resource Over NetworkApplication Isolation and Sandboxing

Tecnologías afectadas (1)

Samsung — Walrus

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2026-47307",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-47307",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-05-19T12:44:44.127057Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "PSIRT@samsung.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 5.5,
          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 1.8
      },
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.5,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "PSIRT@samsung.com",
      "affectedData": [
        {
          "vendor": "Samsung Open Source",
          "product": "Walrus",
          "versions": [
            {
              "status": "affected",
              "version": "f339b8ee4ea701772e8ae640b3d1b12ac02b1ae9"
            }
          ],
          "defaultStatus": "unaffected"
        }
      ]
    }
  ],
  "published": "2026-05-19T04:16:31.317",
  "references": [
    {
      "url": "https://github.com/Samsung/walrus/pull/409",
      "tags": [
        "Issue Tracking",
        "Patch"
      ],
      "source": "PSIRT@samsung.com"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "PSIRT@samsung.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-476"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "NULL pointer dereference vulnerability in Samsung Open Source Walrus allows an attacker to cause a denial of service via a crafted WebAssembly module containing deeply nested instructions.\n\nThis issue affects Walrus: f339b8ee4ea701772e8ae640b3d1b12ac02b1ae9."
    },
    {
      "lang": "es",
      "value": "Vulnerabilidad de desreferencia de puntero NULL en Samsung Open Source Walrus permite a un atacante causar una denegación de servicio mediante un módulo WebAssembly manipulado que contiene instrucciones profundamente anidadas.\n\nEste problema afecta a Walrus: f339b8ee4ea701772e8ae640b3d1b12ac02b1ae9."
    }
  ],
  "lastModified": "2026-07-24T12:10:00.210",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:samsung:walrus:2026-04-27:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "A6284EE6-29F9-4E25-957B-3FBBCC258171"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "PSIRT@samsung.com"
}