CVE-2026-119948

Alta (7.5)—PoC

Parchear con prioridadHay código de explotación público (Prueba de concepto en GitHub (no verificada)). Sin explotación activa confirmada.

Aviso del fabricante· Microsoft MSRC

Gravedad7.5Alta · CVSS 3.1

Probabilidad de explotación0.68 %mayor que el 53 % de las CVE · dato del 11 nov 2026

Explotación activaNono figura en el catálogo de CISA · comprobado 12 nov, 03:00

Exploit públicoDisponiblePrueba de concepto en GitHub (no verificada)

Noticias y reportajes en Orbitaley

Desbordamiento de búfer basado en la pila en Windows Active Directory que permite a un atacante autorizado ejecutar código a través de una red.

Traducción automática del texto original de NVD (en inglés).

Cronología

Elaborada con nuestros propios datos: NVD, CISA KEV y otros catálogos de explotación, FIRST EPSS, exploits públicos, prensa especializada y la cobertura de Orbitaley.

10 nov 2026Registro CVE publicado en NVD
10 nov 2026Alerta: Microsoft corrige 200 vulnerabilidades, entre ellas un fallo de Outlook que CISA confirma como explotado
11 nov 2026Primera mención en prensa especializada (El Hacker)
11 nov 2026Primer exploit público

Exploits públicos

Hay código de explotación o plantillas de detección públicos. No es lo mismo que explotación activa confirmada (KEV), pero aumenta el riesgo: parchee con prioridad.

Prueba de concepto en GitHub (no verificada) · Lista de pruebas de concepto en GitHub

⚠️ Las pruebas de concepto de GitHub no están verificadas: algunas son falsas o contienen malware. No las ejecute nunca fuera de un laboratorio aislado.

Cobertura en medios

Medios especializados en seguridad que han citado esta CVE:

El Hacker · Vulnerabilidad RCE en Windows Active Directory permite ejecutar código en red (11 nov 2026)

Técnicas ATT&CK

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

ExplotaciónT1210 Exploitation of Remote Serviceslateral movement90 %
Impacto principalT1059 Command and Scripting Interpreterexecution75 %

El vector AV:N/PR:L/UI:N indica red con privilegios (T1210); la descripción dice ejecutar código sin nombrar intérprete, así que T1059 padre.

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 Management Disable or Remove Feature or Program Vulnerability Scanning Threat Intelligence Program Restrict Web-Based Content Network Segmentation

Tecnologías afectadas (1)

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

Microsoft — Windows Active Directory^AI

Registro NVD

Estado en NVD: Pendiente de análisis
Publicada: 10 nov 2026
Última modificación: 10 nov 2026
Vector CVSS: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Debilidad (CWE): CWE-121

Referencias

Referenciamsrc.microsoft.com/update-guide/vulnerability/CVE-2026-119948

JSON original (NVD)

Mostrar

{
  "id": "CVE-2026-119948",
  "cveTags": [],
  "metrics": {
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      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-119948",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-11-10T18:58:22.932278Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
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        "source": "secure@microsoft.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.5,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 1.6
      }
    ]
  },
  "affected": [
    {
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  "published": "2026-11-10T19:20:18.283",
  "references": [
    {
      "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-119948",
      "source": "secure@microsoft.com"
    }
  ],
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "secure@microsoft.com",
      "description": [
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          "lang": "en",
          "value": "CWE-121"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Stack-based buffer overflow in Windows Active Directory allows an authorized attacker to execute code over a network."
    }
  ],
  "lastModified": "2026-11-10T19:20:18.417",
  "sourceIdentifier": "secure@microsoft.com"
}