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CVE-2018-8581

Estado: AnalizadaAlta (7.4)⚠ Explotación activa

An elevation of privilege vulnerability exists in Microsoft Exchange Server, aka "Microsoft Exchange Server Elevation of Privilege Vulnerability." This affects Microsoft Exchange Server.

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).

CISA KEV — explotada activamente

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

CVE-2018-8581 permite escalada de privilegios en Exchange Server accesible remotamente sin autenticación (AV:N, PR:N). Se explota T1190 (aplicación expuesta); impactos: T1548.002 (ejecución como admin) y T1098.002 (manipulación de cuentas de servicio). Activo en ransomware.

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

Privileged Account ManagementUpdate SoftwareVulnerability ScanningNetwork SegmentationLimit Access to Resource Over NetworkFilter Network Traffic

Tecnologías afectadas (1)

Microsoft — Exchange Server

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2018-8581",
  "cveTags": [],
  "metrics": {
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      {
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        "ssvcData": {
          "id": "CVE-2018-8581",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "active"
            },
            {
              "automatable": "no"
            },
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            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-02-04T15:27:10.323591Z"
        }
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          "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:N",
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        "acInsufInfo": false,
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        "obtainAllPrivilege": false,
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      }
    ],
    "cvssMetricV31": [
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      },
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  },
  "affected": [
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          "versions": [
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  "published": "2018-11-14T01:29:01.927",
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      "tags": [
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      "source": "secure@microsoft.com"
    },
    {
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      "tags": [
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    },
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      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-8581",
      "tags": [
        "US Government Resource"
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
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          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
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  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "An elevation of privilege vulnerability exists in Microsoft Exchange Server, aka \"Microsoft Exchange Server Elevation of Privilege Vulnerability.\" This affects Microsoft Exchange Server."
    },
    {
      "lang": "es",
      "value": "Existe una vulnerabilidad de elevación de privilegios en Microsoft Exchange Server. Esto también se conoce como \"Microsoft Exchange Server Elevation of Privilege Vulnerability\". Esto afecta a Microsoft Exchange Server."
    }
  ],
  "lastModified": "2026-06-17T02:05:08.627",
  "cisaActionDue": "2022-03-17",
  "cisaExploitAdd": "2022-03-03",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
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  "cisaRequiredAction": "Apply updates per vendor instructions.",
  "cisaVulnerabilityName": "Microsoft Exchange Server Privilege Escalation Vulnerability"
}