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CVE-2025-40539

Estado: AnalizadaAlta (7.2)—

A type confusion vulnerability exists in Serv-U which when exploited, gives a malicious actor the ability to execute arbitrary native code as privileged account.

This issue requires administrative privileges to abuse. On Windows deployments, the risk is scored as a medium because services frequently run under less-privileged service accounts by default.

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).

🎯 Técnicas ATT&CK

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

Vulnerabilidad remota (AV:N) que requiere privilegios administrativos (PR:H) en Serv-U. Explotación de servicio remoto (T1210). Impactos: ejecución de código nativo arbitrario (T1059) con capacidad de escalada de privilegios hacia account privilegiada (T1068).

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

Threat Intelligence ProgramPrivileged Account ManagementExecution PreventionDisable or Remove Feature or ProgramApplication Isolation and SandboxingExploit Protection

Tecnologías afectadas (1)

Solarwinds — Serv-u

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2025-40539",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-40539",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
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            },
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              "technicalImpact": "total"
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          "version": "2.0.3",
          "timestamp": "2026-02-25T04:55:28.924499Z"
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    "cvssMetricV31": [
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          "confidentialityImpact": "HIGH"
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  "published": "2026-02-24T08:16:27.863",
  "references": [
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      "url": "https://documentation.solarwinds.com/en/success_center/servu/content/release_notes/servu_15-5-4_release_notes.htm",
      "tags": [
        "Release Notes",
        "Vendor Advisory"
      ],
      "source": "psirt@solarwinds.com"
    },
    {
      "url": "https://www.solarwinds.com/trust-center/security-advisories/CVE-2025-40539",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "psirt@solarwinds.com"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
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      "source": "psirt@solarwinds.com",
      "description": [
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          "value": "CWE-704"
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      "value": "A type confusion vulnerability exists in Serv-U which when exploited, gives a malicious actor the ability to execute arbitrary native code as privileged account.\n\nThis issue requires administrative privileges to abuse. On Windows deployments, the risk is scored as a medium because services frequently run under less-privileged service accounts by default."
    },
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      "lang": "es",
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    }
  ],
  "lastModified": "2026-06-17T09:21:43.750",
  "configurations": [
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