CVE-2023-40254

Estado: ModificadaCrítica (9.8)—

Download of Code Without Integrity Check vulnerability in Genians Genian NAC V4.0, Genians Genian NAC V5.0, Genians Genian NAC Suite V5.0, Genians Genian ZTNA allows Malicious Software Update.This issue affects Genian NAC V4.0: from V4.0.0 through V4.0.155; Genian NAC V5.0: from V5.0.0 through V5.0.42 (Revision 117460); Genian NAC Suite V5.0: from V5.0.0 through V5.0.54; Genian ZTNA: from V6.0.0 through V6.0.15.

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: 0.19%
Percentil entre todas las CVEs puntuadas: 8
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).

Tecnologías afectadas (2)

Genians — Genian NAC Genians — Genian Ztna

CWE

CWE-89
CWE-494

Referencias

JSON original (NVD)

Mostrar

{
  "id": "CVE-2023-40254",
  "cveTags": [],
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        "ssvcData": {
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          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2024-10-10T14:54:36.654999Z"
        }
      }
    ],
    "cvssMetricV31": [
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        "cvssData": {
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          "vectorString": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "HIGH",
          "confidentialityImpact": "HIGH"
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        "exploitabilityScore": 0.8
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          "integrityImpact": "HIGH",
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          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
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          "product": "Genian NAC V4.0",
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              "changes": [
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                  "status": "unaffected"
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                  "at": "V5.0.42 (Revision 117461)",
                  "status": "unaffected"
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              ],
              "version": "V5.0.0",
              "versionType": "custom",
              "lessThanOrEqual": "V5.0.42 (Revision 117460)"
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          "product": "Genian NAC Suite V5.0",
          "versions": [
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                  "status": "unaffected"
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          "product": "Genian ZTNA",
          "versions": [
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              "changes": [
                {
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                  "status": "unaffected"
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              "version": "V6.0.0",
              "versionType": "custom",
              "lessThanOrEqual": "V6.0.15"
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      "affectedData": [
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          "cpes": [
            "cpe:2.3:a:genians:genian_nac:4.0.0:*:*:*:-:*:*:*"
          ],
          "vendor": "genians",
          "product": "genian_nac",
          "versions": [
            {
              "status": "affected",
              "version": "4.0.0",
              "versionType": "custom",
              "lessThanOrEqual": "4.0.155"
            },
            {
              "status": "affected",
              "version": "5.0.0",
              "versionType": "custom",
              "lessThanOrEqual": "5.0.42"
            },
            {
              "status": "affected",
              "version": "5.0.0",
              "versionType": "custom",
              "lessThanOrEqual": "5.0.54"
            },
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              "version": "6.0.0",
              "versionType": "custom",
              "lessThanOrEqual": "6.0.15"
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          ],
          "defaultStatus": "unknown"
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  ],
  "published": "2023-08-11T07:15:09.423",
  "references": [
    {
      "url": "https://docs.genians.com/nac/5.0/release/ko/advisories/GN-SA-2023-001.html",
      "source": "vuln@krcert.or.kr"
    },
    {
      "url": "https://docs.genians.com/nac/5.0/release/ko/advisories/GN-SA-2023-001.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "vuln@krcert.or.kr",
      "description": [
        {
          "lang": "en",
          "value": "CWE-89"
        }
      ]
    },
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-494"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Download of Code Without Integrity Check vulnerability in Genians Genian NAC V4.0, Genians Genian NAC V5.0, Genians Genian NAC Suite V5.0, Genians Genian ZTNA allows Malicious Software Update.This issue affects Genian NAC V4.0: from V4.0.0 through V4.0.155; Genian NAC V5.0: from V5.0.0 through V5.0.42 (Revision 117460); Genian NAC Suite V5.0: from V5.0.0 through V5.0.54; Genian ZTNA: from V6.0.0 through V6.0.15.\n\n"
    },
    {
      "lang": "es",
      "value": "La vulnerabilidad de descarga de código sin comprobación de integridad en Genians Genian NAC V4.0, Genians Genian NAC V5.0, Genians Genian NAC Suite V5.0, Genians Genian ZTNA permite la actualización de software malicioso. Este problema afecta a \nGenian NAC V4.0: de V4.0.0 a V4.0.155; \nGenian NAC V5.0: de V5.0.0 a V5.0.42 (Revisión 117460); \nGenian NAC Suite V5.0: de V5.0.0 a V5.0.54; \nGenian ZTNA: de V6.0.0 a V6.0.15.\n"
    }
  ],
  "lastModified": "2026-06-17T06:16:53.383",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
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              "criteria": "cpe:2.3:a:genians:genian_nac:*:*:*:*:-:*:*:*",
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              "matchCriteriaId": "BE039840-D93C-49CA-BB6A-B70771196C1B",
              "versionEndExcluding": "4.0.156",
              "versionStartIncluding": "4.0.0"
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            },
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              "vulnerable": true,
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  "sourceIdentifier": "vuln@krcert.or.kr"
}