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CVE-2025-41251

Estado: AplazadaAlta (8.1)—

VMware NSX contains a weak password recovery mechanism vulnerability. An unauthenticated malicious actor may exploit this to enumerate valid usernames, potentially enabling brute-force attacks.

Impact: Username enumeration → credential brute force risk. Attack Vector: Remote, unauthenticated. Severity: Important. CVSSv3: 8.1 (High).

Acknowledgments: Reported by the National Security Agency.

Affected Products:VMware NSX 9.x.x.x, 4.2.x, 4.1.x, 4.0.x

NSX-T 3.x VMware Cloud Foundation (with NSX) 5.x, 4.5.x

Fixed Versions: NSX 9.0.1.0; 4.2.2.2/4.2.3.1 http://4.2.2.2/4.2.3.1 ; 4.1.2.7; NSX-T 3.2.4.3; CCF async patch (KB88287). Workarounds: None.

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 sin autenticación (AV:N/PR:N) en NSX permite enumeración de usuarios válidos (CWE-640: weak password recovery) facilitando ataques de fuerza bruta contra 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

Update SoftwareVulnerability ScanningPrivileged Account ManagementPassword PoliciesNetwork SegmentationMulti-factor Authentication

Tecnologías afectadas (3)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Vmware — Cloud FoundationAIVmware — NSXAIVmware — Nsx-tAI

CWE

Referencias

JSON original (NVD)

Mostrar
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        "ssvcData": {
          "id": "CVE-2025-41251",
          "role": "CISA Coordinator",
          "options": [
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            {
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            },
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          "version": "2.0.3",
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          "attackComplexity": "HIGH",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
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  "affected": [
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      "source": "security@vmware.com",
      "affectedData": [
        {
          "vendor": "vmware",
          "product": "NSX",
          "versions": [
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  "published": "2025-09-29T19:15:35.157",
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      "source": "security@vmware.com"
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  "descriptions": [
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      "value": "VMware NSX contains a weak password recovery mechanism vulnerability. An unauthenticated malicious actor may exploit this to enumerate valid usernames, potentially enabling brute-force attacks.\n\nImpact: Username enumeration → credential brute force risk.\nAttack Vector: Remote, unauthenticated.\nSeverity: Important.\nCVSSv3: 8.1 (High).\n\nAcknowledgments: Reported by the National Security Agency.\n\nAffected Products:VMware NSX 9.x.x.x, 4.2.x, 4.1.x, 4.0.x\n\nNSX-T 3.x\nVMware Cloud Foundation (with NSX) 5.x, 4.5.x\n\nFixed Versions: NSX 9.0.1.0;  4.2.2.2/4.2.3.1 http://4.2.2.2/4.2.3.1 ; 4.1.2.7; NSX-T 3.2.4.3; CCF async patch (KB88287).\nWorkarounds: None."
    }
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  "lastModified": "2026-06-17T09:22:40.500",
  "sourceIdentifier": "security@vmware.com"
}