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CVE-2026-103264

Estado: Pendiente de análisisCrítica (9.3)—

Fleet versions before 4.87.0 contain an authentication bypass vulnerability in the device API that accepts hostnames and hardware serials as authentication tokens in addition to device UUIDs. Unauthenticated attackers who know or guess these non-secret identifiers can authenticate as iOS/iPadOS hosts to read device data and trigger device-scoped actions including software installation and MDM migration.

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.

Autenticación sin protección en API de dispositivos (CWE-287) permite acceso remoto sin credenciales válidas. Atacantes leen datos de dispositivos e instalan software mediante identificadores adivinables.

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

Privileged Account ManagementApplication Developer GuidanceActive Directory ConfigurationVulnerability ScanningUser TrainingUser Account Management

Tecnologías afectadas (1)

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

Fleet — FleetAI

CWE

Referencias

JSON original (NVD)

Mostrar
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  "id": "CVE-2026-103264",
  "cveTags": [],
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        "ssvcData": {
          "id": "CVE-2026-103264",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "total"
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          "version": "2.0.3",
          "timestamp": "2026-10-01T13:30:37.558254Z"
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          "integrityImpact": "HIGH",
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    ],
    "cvssMetricV40": [
      {
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        "cvssData": {
          "Safety": "NOT_DEFINED",
          "version": "4.0",
          "Recovery": "NOT_DEFINED",
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          "Automatable": "NOT_DEFINED",
          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "valueDensity": "NOT_DEFINED",
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          "modifiedUserInteraction": "NOT_DEFINED",
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          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
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          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "vulnerabilityResponseEffort": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED"
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      "affectedData": [
        {
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          "versions": [
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              "version": "0",
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              "versionType": "semver"
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            {
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              "version": "4.87.0",
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          ],
          "packageURL": "pkg:golang/github.com/fleetdm/fleet",
          "defaultStatus": "unaffected"
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  "published": "2026-10-01T11:17:21.410",
  "references": [
    {
      "url": "https://github.com/fleetdm/fleet/security/advisories/GHSA-vrc8-2wcx-327f",
      "source": "disclosure@vulncheck.com"
    },
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      "url": "https://www.vulncheck.com/advisories/fleet-before-4.87.0-authentication-bypass-via-device-identifiers",
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  ],
  "vulnStatus": "Awaiting Analysis",
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      "lang": "en",
      "value": "Fleet versions before 4.87.0 contain an authentication bypass vulnerability in the device API that accepts hostnames and hardware serials as authentication tokens in addition to device UUIDs. Unauthenticated attackers who know or guess these non-secret identifiers can authenticate as iOS/iPadOS hosts to read device data and trigger device-scoped actions including software installation and MDM migration."
    }
  ],
  "lastModified": "2026-10-01T15:09:04.013",
  "sourceIdentifier": "disclosure@vulncheck.com"
}