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CVE-2026-102143

Estado: En análisisAlta (7.5)—

An unauthenticated attacker could cause a file with attacker-controlled content to be written to the appliance filesystem through an administrative upload handler that did not properly authenticate the request. This did not by itself result in code execution, which would require a separate vulnerability to place the file in an executable location.

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).

🎯 Técnicas ATT&CK

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

Vector AV:N/PR:N permite T1190. Escritura de archivo con contenido controlado en handler administrativo sin autenticación (CWE-306). Web shell (T1505.003) como impacto primary; credenciales solo especulativo sin ejecución confirmada.

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

User Account ManagementPrivileged Account ManagementApplication Developer GuidanceActive Directory ConfigurationVulnerability ScanningUser Training

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2026-102143",
  "cveTags": [],
  "metrics": {
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        "ssvcData": {
          "id": "CVE-2026-102143",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-10-01T15:14:03.743686Z"
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          "version": "3.1",
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          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 3.9
      }
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  },
  "affected": [
    {
      "source": "9119a7d8-5eab-497f-8521-727c672e3725",
      "affectedData": [
        {
          "vendor": "Kiteworks",
          "product": "Email Protection Gateway",
          "versions": [
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              "version": "0",
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  "published": "2026-09-30T21:17:03.143",
  "references": [
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      "url": "https://github.com/kiteworks/security-advisories/security/advisories/GHSA-3p9g-jh62-8f89",
      "source": "9119a7d8-5eab-497f-8521-727c672e3725"
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      "description": [
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      "lang": "en",
      "value": "An unauthenticated attacker could cause a file with attacker-controlled content to be written to the appliance filesystem through an administrative upload handler that did not properly authenticate the request. This did not by itself result in code execution, which would require a separate vulnerability to place the file in an executable location."
    }
  ],
  "lastModified": "2026-10-01T16:17:33.493",
  "sourceIdentifier": "9119a7d8-5eab-497f-8521-727c672e3725"
}