CVE-2021-38163

Estado: AnalizadaAlta (8.8)⚠ Explotación activa

SAP NetWeaver (Visual Composer 7.0 RT) versions - 7.30, 7.31, 7.40, 7.50, without restriction, an attacker authenticated as a non-administrative user can upload a malicious file over a network and trigger its processing, which is capable of running operating system commands with the privilege of the Java Server process. These commands can be used to read or modify any information on the server or shut the server down making it unavailable.

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)

Probabilidad de explotación en los próximos 30 días: 37%
Percentil entre todas las CVEs puntuadas: 98
Fecha de la puntuación: 6/10/2026

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

Añadida al catálogo: 9/6/2022
Plazo de remediación: 30/6/2022
Uso conocido en ransomware: Unknown

🎯 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 movement85 %
Impacto principalT1059.004 Unix Shellexecution90 %
Impacto secundarioT1005 Data from Local Systemcollection85 %
Impacto secundarioT1499.004 Application or System Exploitationimpact75 %

Autenticado accede a servicio remoto (T1210) sin privs administrativas para ejecutar comandos OS (T1059.004) con privilegios del proceso Java, afectando confidencialidad, integridad y disponibilidad.

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 Scanning Threat Intelligence Program Privileged Account Management Network Segmentation Filter Network Traffic Execution Prevention

Tecnologías afectadas (1)

SAP — Netweaver

CWE

CWE-22
CWE-22

Referencias

JSON original (NVD)

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  "published": "2021-09-14T12:15:10.890",
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      "tags": [
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      "tags": [
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    {
      "lang": "en",
      "value": "SAP NetWeaver (Visual Composer 7.0 RT) versions - 7.30, 7.31, 7.40, 7.50, without restriction, an attacker authenticated as a non-administrative user can upload a malicious file over a network and trigger its processing, which is capable of running operating system commands with the privilege of the Java Server process. These commands can be used to read or modify any information on the server or shut the server down making it unavailable."
    },
    {
      "lang": "es",
      "value": "SAP NetWeaver (Visual Composer 7.0 RT) versiones - 7.30, 7.31, 7.40, 7.50, sin restricción, un atacante autenticado como usuario no administrativo puede cargar un archivo malicioso a través de la red y desencadenar su procesamiento, que es capaz de ejecutar comandos del sistema operativo con el privilegio del proceso del servidor Java. Estos comandos pueden ser usados para leer o modificar cualquier información en el servidor o apagar el servidor haciendo que no esté disponible"
    }
  ],
  "lastModified": "2026-06-17T04:01:38.330",
  "cisaActionDue": "2022-06-30",
  "cisaExploitAdd": "2022-06-09",
  "configurations": [
    {
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  "cisaRequiredAction": "Apply updates per vendor instructions.",
  "cisaVulnerabilityName": "SAP NetWeaver Unrestricted File Upload Vulnerability"
}