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CVE-2021-47896

Estado: AplazadaAlta (8.5)—

PDF Complete Corporate Edition 4.1.45 contains an unquoted service path vulnerability in the pdfcDispatcher service that allows local attackers to potentially execute arbitrary code. Attackers can exploit the unquoted path in the service binary location to inject malicious executables that will be run with elevated LocalSystem privileges.

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.

AV:L + PR:L sin UI indica escalada de privilegios local. Unquoted service path permite inyectar ejecutables que se corren con privilegios LocalSystem, logrando ejecución de código y elevación de privilegios.

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 PreventionPrivileged Account ManagementAuditUpdate SoftwareUser Account ManagementThreat Intelligence Program

Tecnologías afectadas (1)

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

PDF Complete — PDF Complete Corporate EditionAI

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2021-47896",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2021-47896",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-01-23T20:54:43.808581Z"
        }
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    "cvssMetricV31": [
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        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.8,
          "attackVector": "LOCAL",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
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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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          "vulnAvailabilityImpact": "HIGH",
          "availabilityRequirement": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "subConfidentialityImpact": "NONE",
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          "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": [
    {
      "source": "disclosure@vulncheck.com",
      "affectedData": [
        {
          "vendor": "PDF Complete, Inc.",
          "product": "PDFCOMPLETE Corporate Edition",
          "versions": [
            {
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              "version": "4.1.45"
            }
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  "published": "2026-01-23T17:15:58.023",
  "references": [
    {
      "url": "https://pdf-complete.informer.com/download/",
      "source": "disclosure@vulncheck.com"
    },
    {
      "url": "https://www.exploit-db.com/exploits/49558",
      "source": "disclosure@vulncheck.com"
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    {
      "url": "https://www.pdfcomplete.com/cms/dpl/tabid/111/Default.aspx?r=du2vH8r",
      "source": "disclosure@vulncheck.com"
    },
    {
      "url": "https://www.vulncheck.com/advisories/pdfcomplete-corporate-edition-pdfcdispatcher-unquoted-service-path",
      "source": "disclosure@vulncheck.com"
    },
    {
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  "vulnStatus": "Deferred",
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      "description": [
        {
          "lang": "en",
          "value": "CWE-428"
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  "descriptions": [
    {
      "lang": "en",
      "value": "PDF Complete Corporate Edition 4.1.45 contains an unquoted service path vulnerability in the pdfcDispatcher service that allows local attackers to potentially execute arbitrary code. Attackers can exploit the unquoted path in the service binary location to inject malicious executables that will be run with elevated LocalSystem privileges."
    },
    {
      "lang": "es",
      "value": "PDF Complete Corporate Edition 4.1.45 contiene una vulnerabilidad de ruta de servicio sin comillas en el servicio pdfcDispatcher que permite a atacantes locales ejecutar potencialmente código arbitrario. Los atacantes pueden explotar la ruta sin comillas en la ubicación del binario del servicio para inyectar ejecutables maliciosos que se ejecutarán con privilegios elevados de LocalSystem."
    }
  ],
  "lastModified": "2026-06-17T04:18:42.830",
  "sourceIdentifier": "disclosure@vulncheck.com"
}