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CVE-2026-32201

Estado: AnalizadaMedia (6.5)⚠ Explotación activa

Improper input validation in Microsoft Office SharePoint allows an unauthorized attacker to perform spoofing over a network.

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.

Vector AV:N/PR:N/UI:N indica acceso remoto sin privilegios (T1190). CWE-20 (validación de entrada) en SharePoint afecta autenticación/autorización, permitiendo suplantación (spoofing) que habilita phishing o recolección de credenciales.

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

Vulnerability ScanningPrivileged Account ManagementNetwork SegmentationLimit Access to Resource Over NetworkFilter Network TrafficApplication Isolation and Sandboxing

Tecnologías afectadas (1)

Microsoft — Sharepoint Server

CWE

Referencias

JSON original (NVD)

Mostrar
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          "options": [
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            },
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          "version": "2.0.3",
          "timestamp": "2026-04-09T00:00:00+00:00"
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    "cvssMetricV31": [
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  "published": "2026-04-14T18:17:27.160",
  "references": [
    {
      "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-32201",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "secure@microsoft.com"
    },
    {
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-32201",
      "tags": [
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        "US Government Resource"
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
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  "vulnStatus": "Analyzed",
  "weaknesses": [
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      "source": "secure@microsoft.com",
      "description": [
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  "descriptions": [
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      "value": "Improper input validation in Microsoft Office SharePoint allows an unauthorized attacker to perform spoofing over a network."
    }
  ],
  "lastModified": "2026-06-17T10:35:20.103",
  "cisaActionDue": "2026-04-28",
  "cisaExploitAdd": "2026-04-14",
  "configurations": [
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  "sourceIdentifier": "secure@microsoft.com",
  "cisaRequiredAction": "Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.",
  "cisaVulnerabilityName": "Microsoft SharePoint Server Improper Input Validation Vulnerability"
}