CVE-2026-83784
Estado: Pendiente de análisisAlta (8.8)—
Recorrido de ruta absoluta en el Sistema de cifrado de archivos (EFS) de Windows permite a un atacante autorizado elevar privilegios a través de una red.
Traducción automática del texto original de NVD (en inglés).
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Puntuación base: 8.8
Probabilidad de explotación (EPSS)
FIRST aún no ha puntuado esta CVE (habitual en CVEs muy recientes o rechazadas).
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.
- Explotación
T1210Exploitation of Remote Serviceslateral movement85 % - Impacto principal
T1068Exploitation for Privilege Escalationprivilege escalation65 %
Vector AV:N/PR:L/UI:N (red con privilegios) y descripción 'authorized attacker... elevate privileges over a network' sustentan T1210 y escalada de privilegios; no se menciona lectura de datos.
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
Tecnologías afectadas (1)
⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.
CWE
- CWE-36
Referencias
JSON original (NVD)
Mostrar
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"published": "2026-10-13T19:20:27.570",
"references": [
{
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-83784",
"source": "secure@microsoft.com"
}
],
"vulnStatus": "Awaiting Analysis",
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{
"type": "Secondary",
"source": "secure@microsoft.com",
"description": [
{
"lang": "en",
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}
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}
],
"descriptions": [
{
"lang": "en",
"value": "Absolute path traversal in Windows Encrypting File System (EFS) allows an authorized attacker to elevate privileges over a network."
}
],
"lastModified": "2026-10-13T21:18:50.640",
"sourceIdentifier": "secure@microsoft.com"
}