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CVE-2025-53788

Estado: AnalizadaAlta (7)—

Time-of-check time-of-use (toctou) race condition in Windows Subsystem for Linux allows an authorized attacker to elevate privileges locally.

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.

TOCTOU race condition en WSL con acceso local (AV:L) y privilegios limitados (PR:L) permite escalada de privilegios, confirmado por CWE-367 y descripción explícita.

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 PreventionUpdate SoftwareUser Account ManagementThreat Intelligence ProgramRestrict File and Directory PermissionsPrivileged Account Management

Tecnologías afectadas (1)

Microsoft — Windows Subsystem FOR Linux

CWE

Referencias

JSON original (NVD)

Mostrar
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  "metrics": {
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          "role": "CISA Coordinator",
          "options": [
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            },
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              "automatable": "no"
            },
            {
              "technicalImpact": "total"
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          "version": "2.0.3",
          "timestamp": "2025-08-13T15:03:30.928543Z"
        }
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          "version": "3.1",
          "baseScore": 7,
          "attackVector": "LOCAL",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 1
      }
    ]
  },
  "affected": [
    {
      "source": "secure@microsoft.com",
      "affectedData": [
        {
          "vendor": "Microsoft",
          "product": "Windows Subsystem for Linux (WSL2)",
          "versions": [
            {
              "status": "affected",
              "version": "5.0.0.0",
              "lessThan": "2.5.10",
              "versionType": "custom"
            }
          ]
        }
      ]
    }
  ],
  "published": "2025-08-12T18:15:47.047",
  "references": [
    {
      "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-53788",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "secure@microsoft.com"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
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      "source": "secure@microsoft.com",
      "description": [
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          "lang": "en",
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        }
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    },
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      "lang": "es",
      "value": "La condición de ejecución de tiempo de uso y tiempo de verificación (toctou) en el Subsistema de Windows para Linux permite que un atacante autorizado eleve privilegios localmente."
    }
  ],
  "lastModified": "2026-06-17T09:38:53.320",
  "configurations": [
    {
      "nodes": [
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          "negate": false,
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  "sourceIdentifier": "secure@microsoft.com"
}