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CVE-2021-47879

Estado: AplazadaAlta (8.5)—

eBeam Interactive Suite 3.6 contains an unquoted service path vulnerability in the eBeam Stylus Driver service that allows local users to potentially execute code with elevated privileges. Attackers can exploit the unquoted path in C:\Program Files (x86)\Luidia\eBeam Stylus Driver\ to inject malicious executables that would run with LocalSystem permissions.

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.

Vector AV:L/PR:L (acceso local con privilegios mínimos) + CWE-428 (unquoted service path) permite escalada de privilegios mediante inyección de ejecutable malicioso en ruta no entrecomillada, resultando en ejecución de código con permisos LocalSystem.

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 InstallationBehavior Prevention on Endpoint

Tecnologías afectadas (1)

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

Luidia — Ebeam Interactive SuiteAI

CWE

Referencias

JSON original (NVD)

Mostrar
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  "id": "CVE-2021-47879",
  "cveTags": [],
  "metrics": {
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        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2021-47879",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-01-22T16:46:59.119363Z"
        }
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    "cvssMetricV31": [
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          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
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          "privilegesRequired": "LOW",
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    ],
    "cvssMetricV40": [
      {
        "type": "Secondary",
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        "cvssData": {
          "Safety": "NOT_DEFINED",
          "version": "4.0",
          "Recovery": "NOT_DEFINED",
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          "Automatable": "NOT_DEFINED",
          "attackVector": "LOCAL",
          "baseSeverity": "HIGH",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/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",
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          "subIntegrityImpact": "NONE",
          "vulnIntegrityImpact": "HIGH",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
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          "availabilityRequirement": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
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          "subConfidentialityImpact": "NONE",
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          "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"
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  "affected": [
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      "affectedData": [
        {
          "vendor": "Luidia",
          "product": "eBeam Interactive Suite",
          "versions": [
            {
              "status": "affected",
              "version": "3.6"
            }
          ]
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      ]
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  ],
  "published": "2026-01-21T18:16:22.093",
  "references": [
    {
      "url": "http://esvc000385.wic045u.server-web.com/Downloads/eBeam/",
      "source": "disclosure@vulncheck.com"
    },
    {
      "url": "https://www.exploit-db.com/exploits/49648",
      "source": "disclosure@vulncheck.com"
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      "url": "https://www.vulncheck.com/advisories/ebeam-interactive-suite-ebeam-stylus-driver-unquoted-service-path",
      "source": "disclosure@vulncheck.com"
    }
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  "vulnStatus": "Deferred",
  "weaknesses": [
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      "description": [
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          "lang": "en",
          "value": "CWE-428"
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    {
      "lang": "en",
      "value": "eBeam Interactive Suite 3.6 contains an unquoted service path vulnerability in the eBeam Stylus Driver service that allows local users to potentially execute code with elevated privileges. Attackers can exploit the unquoted path in C:\\Program Files (x86)\\Luidia\\eBeam Stylus Driver\\ to inject malicious executables that would run with LocalSystem permissions."
    },
    {
      "lang": "es",
      "value": "eBeam Interactive Suite 3.6 contiene una vulnerabilidad de ruta de servicio sin comillas en el servicio eBeam Stylus Driver que permite a los usuarios locales ejecutar código potencialmente con privilegios elevados. Los atacantes pueden explotar la ruta sin comillas en C:\\Program Files (x86)\\Luidia\\eBeam Stylus Driver\\ para inyectar ejecutables maliciosos que se ejecutarían con permisos de LocalSystem."
    }
  ],
  "lastModified": "2026-06-17T04:18:40.930",
  "sourceIdentifier": "disclosure@vulncheck.com"
}