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CVE-2021-20827

Estado: ModificadaAlta (7.5)—

Plaintext storage of a password vulnerability in IDEC PLCs (FC6A Series MICROSmart All-in-One CPU module v2.32 and earlier, FC6A Series MICROSmart Plus CPU module v1.91 and earlier, WindLDR v8.19.1 and earlier, WindEDIT Lite v1.3.1 and earlier, and Data File Manager v2.12.1 and earlier) allows an attacker to obtain the PLC Web server user credentials from file servers, backup repositories, or ZLD files saved in SD cards. As a result, the attacker may access the PLC Web server and hijack the PLC, and manipulation of the PLC output and/or suspension of the PLC may be conducted.

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).

Tecnologías afectadas (5)

Idec — Data File ManagerIdec — Microsmart Fc6a FirmwareIdec — Microsmart Plus Fc6a FirmwareIdec — WindeditIdec — Windldr

CWE

Referencias

JSON original (NVD)

Mostrar
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          "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N",
          "authentication": "NONE",
          "integrityImpact": "NONE",
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  "affected": [
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  "published": "2021-12-24T07:15:06.653",
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  "vulnStatus": "Modified",
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      "description": [
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          "value": "CWE-312"
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    {
      "lang": "en",
      "value": "Plaintext storage of a password vulnerability in IDEC PLCs (FC6A Series MICROSmart All-in-One CPU module v2.32 and earlier, FC6A Series MICROSmart Plus CPU module v1.91 and earlier, WindLDR v8.19.1 and earlier, WindEDIT Lite v1.3.1 and earlier, and Data File Manager v2.12.1 and earlier) allows an attacker to obtain the PLC Web server user credentials from file servers, backup repositories, or ZLD files saved in SD cards. As a result, the attacker may access the PLC Web server and hijack the PLC, and manipulation of the PLC output and/or suspension of the PLC may be conducted."
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      "value": "Una vulnerabilidad de almacenamiento de texto plano de una contraseña en los PLC de IDEC (módulo de CPU MICROSmart All-in-One de la serie FC6A versiones v2.32 y anteriores, módulo de CPU MICROSmart Plus de la serie FC6A versiones v1.91 y anteriores, WindLDR versiones v8.19.1 y anteriores, WindEDIT Lite versiones v1.3.1 y anteriores, y Data File Manager versiones v2.12.1 y anteriores) permite a un atacante obtener las credenciales de usuario del servidor web del PLC desde servidores de archivos, repositorios de copias de seguridad o archivos ZLD guardados en tarjetas SD. Como resultado, el atacante puede acceder al servidor web del PLC y secuestrar el PLC, pudiendo manipular la salida del PLC y/o suspenderlo"
    }
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  "lastModified": "2026-06-17T03:34:30.190",
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