FKIE_CVE-2026-5164

Vulnerability from fkie_nvd - Published: 2026-03-30 15:16 - Updated: 2026-04-01 14:24
Severity ?
6.7 (Medium) - CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Summary
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).
References
secalert@redhat.comhttps://access.redhat.com/security/cve/CVE-2026-5164
secalert@redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=2453014
secalert@redhat.comhttps://github.com/virtio-win/kvm-guest-drivers-windows/pull/1504
Impacted products
Vendor Product Version
To clipboard 

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "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 encontr\u00f3 una falla en virtio-win. La funci\u00f3n \u0027RhelDoUnMap()\u0027 no valida correctamente el n\u00famero de descriptores proporcionados por un usuario durante una solicitud de desmapeo. Un usuario local podr\u00eda explotar esta vulnerabilidad de validaci\u00f3n de entrada al proporcionar un n\u00famero excesivo de descriptores, lo que lleva a un desbordamiento de b\u00fafer. Esto puede causar una ca\u00edda del sistema, resultando en una denegaci\u00f3n de servicio (DoS)."
    }
  ],
  "id": "CVE-2026-5164",
  "lastModified": "2026-04-01T14:24:21.833",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 6.7,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "HIGH",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 0.8,
        "impactScore": 5.9,
        "source": "secalert@redhat.com",
        "type": "Secondary"
      }
    ]
  },
  "published": "2026-03-30T15:16:36.180",
  "references": [
    {
      "source": "secalert@redhat.com",
      "url": "https://access.redhat.com/security/cve/CVE-2026-5164"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2453014"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://github.com/virtio-win/kvm-guest-drivers-windows/pull/1504"
    }
  ],
  "sourceIdentifier": "secalert@redhat.com",
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-120"
        }
      ],
      "source": "secalert@redhat.com",
      "type": "Secondary"
    }
  ]
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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