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CVE-2021-28821

Estado: ModificadaAlta (7.8)—

The Windows Installation component of TIBCO Software Inc.'s TIBCO Enterprise Message Service, TIBCO Enterprise Message Service - Community Edition, and TIBCO Enterprise Message Service - Developer Edition contains a vulnerability that theoretically allows a low privileged attacker with local access on some versions of the Windows operating system to insert malicious software. The affected component can be abused to execute the malicious software inserted by the attacker with the elevated privileges of the component.

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This vulnerability results from a lack of access restrictions on certain files and/or folders in the installation. Affected releases are TIBCO Software Inc.'s TIBCO Enterprise Message Service: versions 8.5.1 and below, TIBCO Enterprise Message Service - Community Edition: versions 8.5.1 and below, and TIBCO Enterprise Message Service - Developer Edition: versions 8.5.1 and below.

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 (1)

Tibco — Enterprise Message Service

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2021-28821",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 4.6,
          "accessVector": "LOCAL",
          "vectorString": "AV:L/AC:L/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 3.9,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
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    "cvssMetricV31": [
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        "type": "Secondary",
        "source": "security@tibco.com",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.1",
          "baseScore": 8.8,
          "attackVector": "LOCAL",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
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        "impactScore": 6,
        "exploitabilityScore": 2
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        "source": "nvd@nist.gov",
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          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
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  "affected": [
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      "affectedData": [
        {
          "vendor": "TIBCO Software Inc.",
          "product": "TIBCO Enterprise Message Service",
          "versions": [
            {
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom",
              "lessThanOrEqual": "8.5.1"
            }
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        },
        {
          "vendor": "TIBCO Software Inc.",
          "product": "TIBCO Enterprise Message Service - Community Edition",
          "versions": [
            {
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom",
              "lessThanOrEqual": "8.5.1"
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        },
        {
          "vendor": "TIBCO Software Inc.",
          "product": "TIBCO Enterprise Message Service - Developer Edition",
          "versions": [
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              "status": "affected",
              "version": "unspecified",
              "versionType": "custom",
              "lessThanOrEqual": "8.5.1"
            }
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        }
      ]
    }
  ],
  "published": "2021-03-23T21:15:14.040",
  "references": [
    {
      "url": "http://www.tibco.com/services/support/advisories",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "security@tibco.com"
    },
    {
      "url": "http://www.tibco.com/services/support/advisories",
      "tags": [
        "Vendor Advisory"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-863"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "The Windows Installation component of TIBCO Software Inc.'s TIBCO Enterprise Message Service, TIBCO Enterprise Message Service - Community Edition, and TIBCO Enterprise Message Service - Developer Edition contains a vulnerability that theoretically allows a low privileged attacker with local access on some versions of the Windows operating system to insert malicious software. The affected component can be abused to execute the malicious software inserted by the attacker with the elevated privileges of the component. This vulnerability results from a lack of access restrictions on certain files and/or folders in the installation. Affected releases are TIBCO Software Inc.'s TIBCO Enterprise Message Service: versions 8.5.1 and below, TIBCO Enterprise Message Service - Community Edition: versions 8.5.1 and below, and TIBCO Enterprise Message Service - Developer Edition: versions 8.5.1 and below."
    },
    {
      "lang": "es",
      "value": "El componente de Instalación de Windows de TIBCO Enterprise Message Service de TIBCO Software Inc., TIBCO Enterprise Message Service - Community Edition y TIBCO Enterprise Message Service - Developer Edition, contiene una vulnerabilidad que teóricamente permite a un atacante poco privilegiado con acceso local en algunas versiones del Sistema operativo Windows insertar software malicioso. Se puede abusar del componente afectado para ejecutar el software malicioso insertado por el atacante con los privilegios elevados del componente. Esta vulnerabilidad es debido a una falta de restricciones de acceso a determinados archivos y/o carpetas en la instalación. Las versiones afectadas son TIBCO Enterprise Message Service de TIBCO Software Inc.: versiones 8.5.1 y por debajo, TIBCO Enterprise Message Service - Community Edition: versiones 8.5.1 y por debajo, y TIBCO Enterprise Message Service - Developer Edition: versiones 8.5.1 y por debajo"
    }
  ],
  "lastModified": "2026-06-17T03:46:55.800",
  "configurations": [
    {
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        {
          "negate": false,
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              "versionEndIncluding": "8.5.1"
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}