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CVE-2025-38366

Estado: ModificadaAlta (7.8)—

In the Linux kernel, the following vulnerability has been resolved:

LoongArch: KVM: Check validity of "num_cpu" from user space

The maximum supported cpu number is EIOINTC_ROUTE_MAX_VCPUS about irqchip EIOINTC, here add validation about cpu number to avoid array pointer overflow.

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/PR:L/UI:N indica escalada de privilegios local. Array pointer overflow en KVM permite ejecución de código o denegación de servicio en el kernel.

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 PreventionThreat Intelligence ProgramRestrict Web-Based ContentPrivileged Account ManagementLimit Software InstallationFilter Network Traffic

Tecnologías afectadas (1)

Linux — Linux Kernel

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2025-38366",
  "cveTags": [],
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          "product": "Linux",
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  "published": "2025-07-25T13:15:25.500",
  "references": [
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      "url": "https://git.kernel.org/stable/c/a3293b4078ee93174f70f36d3ab7618554ce6ab6",
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    },
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  "vulnStatus": "Modified",
  "weaknesses": [
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      "source": "nvd@nist.gov",
      "description": [
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          "value": "NVD-CWE-noinfo"
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      ]
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  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nLoongArch: KVM: Check validity of \"num_cpu\" from user space\n\nThe maximum supported cpu number is EIOINTC_ROUTE_MAX_VCPUS about\nirqchip EIOINTC, here add validation about cpu number to avoid array\npointer overflow."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: LoongArch: KVM: verificar la validez de \"num_cpu\" desde el espacio del usuario. El número máximo de CPU admitido es EIOINTC_ROUTE_MAX_VCPUS sobre irqchip EIOINTC, aquí agregue validación sobre el número de CPU para evitar el desbordamiento del puntero de la matriz."
    }
  ],
  "lastModified": "2026-07-30T06:23:10.487",
  "configurations": [
    {
      "nodes": [
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          "negate": false,
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}