CVE-2021-43717

Estado: AplazadaCrítica (9.8)—

An issue exists in pson EH-TW5350 Epson iProjection.apk v3.2.6. If you identify a projector equipped with an iProjection function, you can access the projector using hard-coded authentication information and control the projector maliciously.

CVSS

Versión: 3.1
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Puntuación base: 9.8

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 0.61%
Percentil entre todas las CVEs puntuadas: 47
Fecha de la puntuación: 5/10/2026

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).

🎯 Técnicas ATT&CK

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

ExplotaciónT1190 Exploit Public-Facing Applicationinitial access90 %
Impacto principalT1078.001 Default Accountsstealth · persistence · privilege escalation · initial access85 %
Impacto secundarioT1565.001 Stored Data Manipulationimpact75 %

Credenciales hardcodeadas en iProjection.apk permiten acceso remoto sin autenticación legítima (AV:N/PR:N/UI:N). Vector CVSS crítico indica alto impacto de confidencialidad, integridad y disponibilidad. Control malintencionado del proyector implica manipulación de configuración.

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 Restrict File and Directory Permissions Privileged Account Management Password Policies Remote Data Storage Network Segmentation

Tecnologías afectadas (2)

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

Epson — Eh-tw5350^AI Epson — Iprojection^AI

CWE

CWE-798

Referencias

JSON original (NVD)

Mostrar

{
  "id": "CVE-2021-43717",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2021-43717",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-08-21T20:16:23.689333Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 9.8,
          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2026-08-18T18:17:26.013",
  "references": [
    {
      "url": "https://github.com/dpfkdlemtp/epson-eh-tw5350-advisories/blob/master/CVE-2021-43717.md",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://github.com/dpfkdlemtp/epson-eh-tw5350-advisories/blob/master/CVE-2021-43717.md",
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
    }
  ],
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "description": [
        {
          "lang": "en",
          "value": "CWE-798"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "An issue exists in pson EH-TW5350 Epson iProjection.apk v3.2.6. If you identify a projector equipped with an iProjection function, you can access the projector using hard-coded authentication information and control the projector maliciously."
    }
  ],
  "lastModified": "2026-09-09T16:04:24.933",
  "sourceIdentifier": "cve@mitre.org"
}