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CVE-2020-2527

Estado: ModificadaMedia (4.1)—

Vulnerability in the Core RDBMS component of Oracle Database Server. Supported versions that are affected are 12.1.0.2, 12.2.0.1, 18c and 19c. Easily exploitable vulnerability allows high privileged attacker having Create Index, Create Table privilege with network access via OracleNet to compromise Core RDBMS. While the vulnerability is in Core RDBMS, attacks may significantly impact additional products. Successful attacks of this vulnerability can result in unauthorized read access to a subset of Core RDBMS accessible data. CVSS 3.0 Base Score 4.1 (Confidentiality impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:N/A:N).

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)

Oracle — Database Server

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2020-2527",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
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        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2020-2527",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
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          "version": "2.0.3",
          "timestamp": "2024-09-30T17:17:50.029496Z"
        }
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    "cvssMetricV2": [
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          "vectorString": "AV:N/AC:L/Au:S/C:P/I:N/A:N",
          "authentication": "SINGLE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV30": [
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        "type": "Secondary",
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        "cvssData": {
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          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:N/A:N",
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  "affected": [
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      "affectedData": [
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          "vendor": "Oracle Corporation",
          "product": "Oracle Database",
          "versions": [
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              "status": "affected",
              "version": "12.1.0.2"
            },
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              "status": "affected",
              "version": "12.2.0.1"
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            {
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              "version": "18c"
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              "version": "19c"
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  "published": "2020-01-15T17:15:15.567",
  "references": [
    {
      "url": "https://www.oracle.com/security-alerts/cpujan2020.html",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "source": "secalert_us@oracle.com"
    },
    {
      "url": "https://www.oracle.com/security-alerts/cpujan2020.html",
      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  ],
  "vulnStatus": "Modified",
  "weaknesses": [
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      "source": "nvd@nist.gov",
      "description": [
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          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
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  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Vulnerability in the Core RDBMS component of Oracle Database Server. Supported versions that are affected are 12.1.0.2, 12.2.0.1, 18c and 19c. Easily exploitable vulnerability allows high privileged attacker having Create Index, Create Table privilege with network access via OracleNet to compromise Core RDBMS. While the vulnerability is in Core RDBMS, attacks may significantly impact additional products. Successful attacks of this vulnerability can result in unauthorized read access to a subset of Core RDBMS accessible data. CVSS 3.0 Base Score 4.1 (Confidentiality impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:N/A:N)."
    },
    {
      "lang": "es",
      "value": "Vulnerabilidad en el componente Core RDBMS de Oracle Database Server. Las versiones compatibles afectadas son 12.1.0.2, 12.2.0.1, 18c y 19c. Una vulnerabilidad fácilmente explotable permite a un atacante muy privilegiado que tiene el privilegio Create Index, Create Table con acceso a la red por medio de OracleNet comprometer a Core RDBMS. Aunque la vulnerabilidad se presenta en Core RDBMS, los ataques pueden impactar significativamente a productos adicionales. Los ataques con éxito de esta vulnerabilidad pueden resultar en un acceso de lectura no autorizado a un subconjunto de datos accesibles de Core RDBMS. CVSS 3.0 Puntuación Base 4.1 (Impactos en la Confidencialidad). Vector CVSS: (CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:N/A:N)."
    }
  ],
  "lastModified": "2026-06-17T03:12:17.303",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
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}