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CVE-2026-23761

Estado: AplazadaMedia (6.9)—

VB-Audio Voicemeeter, Voicemeeter Banana, and Voicemeeter Potato (versions ending in 1.1.1.9, 2.1.1.9, and 3.1.1.9 and earlier, respectively), as well as VB-Audio Matrix and Matrix Coconut (versions ending in 1.0.2.2 and 2.0.2.2 and earlier, respectively), contain a vulnerability in their virtual audio drivers (vbvoicemeetervaio64*.sys, vbmatrixvaio64*.sys, vbaudio_vmauxvaio*.sys, vbaudio_vmvaio*.sys, and vbaudio_vmvaio3*.sys). When a handle is opened with a special file attribute value, the drivers improperly initialize FILE_OBJECT->FsContext to a non-pointer magic value.

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If subsequent operations are not handled by the VB-Audio driver and are forwarded down the audio driver stack (e.g., via PortCls to ks.sys), the invalid FsContext value can be dereferenced, causing a kernel crash (BSoD), typically SYSTEM_SERVICE_EXCEPTION with STATUS_ACCESS_VIOLATION. This flaw allows a local unprivileged user to trigger a denial-of-service on affected Windows systems.

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 (5)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Vb-audio — MatrixAIVb-audio — Matrix CoconutAIVb-audio — VoicemeeterAIVb-audio — Voicemeeter BananaAIVb-audio — Voicemeeter PotatoAI

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2026-23761",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-23761",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-01-22T16:41:19.114138Z"
        }
      }
    ],
    "cvssMetricV40": [
      {
        "type": "Secondary",
        "source": "disclosure@vulncheck.com",
        "cvssData": {
          "Safety": "NOT_DEFINED",
          "version": "4.0",
          "Recovery": "NOT_DEFINED",
          "baseScore": 6.9,
          "Automatable": "NOT_DEFINED",
          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
          "exploitMaturity": "NOT_DEFINED",
          "providerUrgency": "NOT_DEFINED",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "privilegesRequired": "NONE",
          "subIntegrityImpact": "NONE",
          "vulnIntegrityImpact": "NONE",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "vulnAvailabilityImpact": "HIGH",
          "availabilityRequirement": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "subConfidentialityImpact": "NONE",
          "vulnConfidentialityImpact": "NONE",
          "confidentialityRequirement": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "vulnerabilityResponseEffort": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED"
        }
      }
    ]
  },
  "affected": [
    {
      "source": "disclosure@vulncheck.com",
      "affectedData": [
        {
          "vendor": "VB-Audio Software",
          "modules": [
            "vbvoicemeetervaio64*_win10.sys",
            "vbaudio_vmauxvaio*.sys",
            "vbaudio_vmvaio*.sys",
            "vbaudio_vmvaio3*.sys"
          ],
          "product": "Voicemeeter (Standard)",
          "versions": [
            {
              "status": "affected",
              "version": "0",
              "versionType": "custom",
              "lessThanOrEqual": "1.1.1.9"
            }
          ],
          "platforms": [
            "Windows"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "vendor": "VB-Audio Software",
          "modules": [
            "vbvoicemeetervaio64*_win10.sys",
            "vbaudio_vmauxvaio*.sys",
            "vbaudio_vmvaio*.sys",
            "vbaudio_vmvaio3*.sys"
          ],
          "product": "Voicemeeter Banana",
          "versions": [
            {
              "status": "affected",
              "version": "0",
              "versionType": "custom",
              "lessThanOrEqual": "2.1.1.9"
            }
          ],
          "platforms": [
            "Windows"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "vendor": "VB-Audio Software",
          "modules": [
            "vbvoicemeetervaio64*_win10.sys",
            "vbaudio_vmauxvaio*.sys",
            "vbaudio_vmvaio*.sys",
            "vbaudio_vmvaio3*.sys"
          ],
          "product": "Voicemeeter Potato",
          "versions": [
            {
              "status": "affected",
              "version": "0",
              "versionType": "custom",
              "lessThanOrEqual": "3.1.1.9"
            }
          ],
          "platforms": [
            "Windows"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "vendor": "VB-Audio Software",
          "modules": [
            "vbmatrixvaio64*_win10.sys"
          ],
          "product": "Matrix",
          "versions": [
            {
              "status": "affected",
              "version": "0",
              "versionType": "custom",
              "lessThanOrEqual": "1.0.2.2"
            }
          ],
          "platforms": [
            "Windows"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "vendor": "VB-Audio Software",
          "modules": [
            "vbmatrixvaio64*_win10.sys"
          ],
          "product": "Matrix Coconut",
          "versions": [
            {
              "status": "affected",
              "version": "0",
              "versionType": "custom",
              "lessThanOrEqual": "2.0.2.2"
            }
          ],
          "platforms": [
            "Windows"
          ],
          "defaultStatus": "unaffected"
        }
      ]
    }
  ],
  "published": "2026-01-22T17:16:37.320",
  "references": [
    {
      "url": "https://forum.vb-audio.com/viewtopic.php?p=7527#p7527",
      "source": "disclosure@vulncheck.com"
    },
    {
      "url": "https://forum.vb-audio.com/viewtopic.php?p=7574#p7574",
      "source": "disclosure@vulncheck.com"
    },
    {
      "url": "https://github.com/emkaix/security-research/tree/main/CVE-2026-23761",
      "source": "disclosure@vulncheck.com"
    },
    {
      "url": "https://vb-audio.com/",
      "source": "disclosure@vulncheck.com"
    },
    {
      "url": "https://www.vulncheck.com/advisories/vb-audio-voicemeeter-and-matrix-drivers-dos-via-improper-file-object-fscontext-initialization",
      "source": "disclosure@vulncheck.com"
    }
  ],
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "disclosure@vulncheck.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-824"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "VB-Audio Voicemeeter, Voicemeeter Banana, and Voicemeeter Potato (versions ending in 1.1.1.9, 2.1.1.9, and 3.1.1.9 and earlier, respectively), as well as VB-Audio Matrix and Matrix Coconut (versions ending in 1.0.2.2 and 2.0.2.2 and earlier, respectively), contain a vulnerability in their virtual audio drivers (vbvoicemeetervaio64*.sys, vbmatrixvaio64*.sys, vbaudio_vmauxvaio*.sys, vbaudio_vmvaio*.sys, and vbaudio_vmvaio3*.sys). When a handle is opened with a special file attribute value, the drivers improperly initialize FILE_OBJECT->FsContext to a non-pointer magic value. If subsequent operations are not handled by the VB-Audio driver and are forwarded down the audio driver stack (e.g., via PortCls to ks.sys), the invalid FsContext value can be dereferenced, causing a kernel crash (BSoD), typically SYSTEM_SERVICE_EXCEPTION with STATUS_ACCESS_VIOLATION. This flaw allows a local unprivileged user to trigger a denial-of-service on affected Windows systems."
    },
    {
      "lang": "es",
      "value": "VB-Audio Voicemeeter, Voicemeeter Banana y Voicemeeter Potato (versiones que terminan en 1.1.1.9, 2.1.1.9 y 3.1.1.9 y anteriores, respectivamente), así como VB-Audio Matrix y Matrix Coconut (versiones que terminan en 1.0.2.2 y 2.0.2.2 y anteriores, respectivamente), contienen una vulnerabilidad en sus controladores de audio virtuales (vbvoicemeetervaio64*.sys, vbmatrixvaio64*.sys, vbaudio_vmauxvaio*.sys, vbaudio_vmvaio*.sys y vbaudio_vmvaio3*.sys). Cuando se abre un identificador con un valor de atributo de archivo especial, los controladores inicializan incorrectamente FILE_OBJECT->FsContext a un valor mágico no puntero. Si las operaciones subsiguientes no son manejadas por el controlador de VB-Audio y son reenviadas a la pila de controladores de audio (por ejemplo, a través de PortCls a ks.sys), el valor FsContext inválido puede ser desreferenciado, causando un fallo del kernel (BSoD), típicamente SYSTEM_SERVICE_EXCEPTION con STATUS_ACCESS_VIOLATION. Esta falla permite a un usuario local sin privilegios activar una denegación de servicio en sistemas Windows afectados."
    }
  ],
  "lastModified": "2026-06-17T10:22:04.180",
  "sourceIdentifier": "disclosure@vulncheck.com"
}