CVE-2026-82988

Estado: AplazadaAlta (7.5)—

There exists an arbitrary file download in vCast APK delivery mechanism in ViewSonic ViewBoard unknown allows a remote, unauthenticated attacker to trigger unprivileged APK installation via serving a malicious APK URL through an unauthenticated download endpoint

CVSS

Versión: 3.1
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Puntuación base: 7.5

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 0.27%
Percentil entre todas las CVEs puntuadas: 18
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).

🎯 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 access85 %
Impacto principalT1078 Valid Accountsstealth · persistence · privilege escalation · initial access80 %
Impacto secundarioT1059 Command and Scripting Interpreterexecution70 %
Impacto secundarioT1505.003 Web Shellpersistence75 %

AV:N/PR:N/UI:N: acceso remoto sin autenticación a endpoint de descarga. El atacante sirve APK malicioso para instalación no privilegiada, logrando ejecución y potencial acceso con privilegios de la app.

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 User Account Management Disable or Remove Feature or Program Application Developer Guidance Active Directory Configuration Vulnerability Scanning

Tecnologías afectadas (1)

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

Viewsonic — Viewboard^AI

CWE

CWE-287, CWE-434, CWE-502

Referencias

JSON original (NVD)

Mostrar

{
  "id": "CVE-2026-82988",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-82988",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-10-06T13:12:32.814466Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.5,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "cret@cert.org",
      "affectedData": [
        {
          "vendor": "Viewsonic",
          "product": "vCast",
          "versions": [
            {
              "status": "affected",
              "version": "v0.0.0",
              "versionType": "custom",
              "lessThanOrEqual": "v3.2.715"
            }
          ]
        }
      ]
    }
  ],
  "published": "2026-10-06T00:16:36.973",
  "references": [
    {
      "url": "https://blog.l3afs.space/posts/Vcast-Viewsonic-RCE-chain/",
      "source": "cret@cert.org"
    },
    {
      "url": "https://kb.cert.org/vuls/id/234131",
      "source": "cret@cert.org"
    }
  ],
  "vulnStatus": "Deferred",
  "weaknesses": [
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          "value": "CWE-502"
        }
      ]
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    {
      "lang": "en",
      "value": "There exists an arbitrary file download in vCast APK delivery mechanism in ViewSonic ViewBoard unknown allows a remote, unauthenticated attacker to trigger unprivileged APK installation via serving a malicious APK URL through an unauthenticated download endpoint"
    }
  ],
  "lastModified": "2026-10-06T15:03:59.427",
  "sourceIdentifier": "cret@cert.org"
}