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CVE-2026-5164

Estado: AnalizadaMedia (5.5)—

A flaw was found in virtio-win. The `RhelDoUnMap()` function does not properly validate the number of descriptors provided by a user during an unmap request. A local user could exploit this input validation vulnerability by supplying an excessive number of descriptors, leading to a buffer overrun. This can cause a system crash, resulting in a Denial of Service (DoS).

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).

Tecnologías afectadas (2)

Redhat — Enterprise LinuxRedhat — Virtio-win

CWE

Referencias

JSON original (NVD)

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              "technicalImpact": "partial"
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          "version": "2.0.3",
          "timestamp": "2026-03-30T15:19:30.452989Z"
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  "published": "2026-03-30T15:16:36.180",
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      "tags": [
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          "value": "CWE-120"
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      "value": "A flaw was found in virtio-win. The `RhelDoUnMap()` function does not properly validate the number of descriptors provided by a user during an unmap request. A local user could exploit this input validation vulnerability by supplying an excessive number of descriptors, leading to a buffer overrun. This can cause a system crash, resulting in a Denial of Service (DoS)."
    },
    {
      "lang": "es",
      "value": "Se encontró una falla en virtio-win. La función 'RhelDoUnMap()' no valida correctamente el número de descriptores proporcionados por un usuario durante una solicitud de desmapeo. Un usuario local podría explotar esta vulnerabilidad de validación de entrada al proporcionar un número excesivo de descriptores, lo que lleva a un desbordamiento de búfer. Esto puede causar una caída del sistema, resultando en una denegación de servicio (DoS)."
    }
  ],
  "lastModified": "2026-06-17T10:58:31.660",
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