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CVE-2017-11157

Estado: ModificadaAlta (7.8)—

Multiple untrusted search path vulnerabilities in the installer in Synology Cloud Station Backup before 4.2.5-4396 on Windows allow local attackers to execute arbitrary code and conduct DLL hijacking attacks via a Trojan horse (1) shfolder.dll, (2) ntmarta.dll, (3) secur32.dll or (4) dwmapi.dll file in the current working directory.

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)

Synology — Cloud Station Backup

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2017-11157",
  "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,
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        "userInteractionRequired": false
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          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
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        "impactScore": 5.9,
        "exploitabilityScore": 1.8
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  "affected": [
    {
      "source": "security@synology.com",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
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              "status": "affected",
              "version": "n/a"
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  "published": "2017-08-30T20:29:00.257",
  "references": [
    {
      "url": "https://www.synology.com/en-global/support/security/Synology_SA_17_50_Cloud_Station_Backup",
      "tags": [
        "Vendor Advisory"
      ],
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    {
      "url": "https://www.synology.com/en-global/support/security/Synology_SA_17_50_Cloud_Station_Backup",
      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-426"
        }
      ]
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  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Multiple untrusted search path vulnerabilities in the installer in Synology Cloud Station Backup before 4.2.5-4396 on Windows allow local attackers to execute arbitrary code and conduct DLL hijacking attacks via a Trojan horse (1) shfolder.dll, (2) ntmarta.dll, (3) secur32.dll or (4) dwmapi.dll file in the current working directory."
    },
    {
      "lang": "es",
      "value": "Múltiples vulnerabilidades de ruta de búsqueda no confiable en el instalador en Synology Cloud Station Backup anterior a la versión  4.2.5-4396 en Windows, permiten a los atacantes locales ejecutar código arbitrario y conducir ataques de secuestro de DLL mediante un archivo de tipo caballo de Troya en las bibliotecas (1) shfolder.dll, (2) ntmarta.dll , (3) secur32.dll o (4) dwmapi.dll, en el directorio de trabajo actual"
    }
  ],
  "lastModified": "2026-06-17T01:01:19.403",
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