« Volver al listado

CVE-2026-21765

Estado: AnalizadaAlta (7.8)—

HCL BigFix Platform is affected by insecure permissions on private cryptographic keys.  The private cryptographic keys located on a Windows host machine might be subject to overly permissive file system permissions.

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:L/PR:L sin UI indica escalada local; CWE-276/732 y permisos inseguros en claves criptográficas privadas confirman T1068. Impacto: modificación de permisos (T1222) y acceso a credenciales/secretos (T1552.001).

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

Restrict File and Directory PermissionsUser TrainingThreat Intelligence ProgramPrivileged Account ManagementPassword PoliciesExecution Prevention

Tecnologías afectadas (1)

Hcltech — Bigfix Platform

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2026-21765",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-21765",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-04-02T18:20:48.284525Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "psirt@hcl.com",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.1",
          "baseScore": 8.8,
          "attackVector": "LOCAL",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 6,
        "exploitabilityScore": 2
      },
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.8,
          "attackVector": "LOCAL",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 1.8
      }
    ]
  },
  "affected": [
    {
      "source": "psirt@hcl.com",
      "affectedData": [
        {
          "vendor": "HCLSoftware",
          "product": "BigFix Platform",
          "versions": [
            {
              "status": "affected",
              "version": "11.0.0 - 11.0.5"
            }
          ],
          "defaultStatus": "unaffected"
        }
      ]
    }
  ],
  "published": "2026-04-02T00:16:23.953",
  "references": [
    {
      "url": "https://support.hcl-software.com/csm?id=kb_article&sysparm_article=KB0129906",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "psirt@hcl.com"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "psirt@hcl.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-276"
        },
        {
          "lang": "en",
          "value": "CWE-732"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "HCL BigFix Platform is affected by insecure permissions on private cryptographic keys.  The private cryptographic keys located on a Windows host machine might be subject to overly permissive file system permissions."
    }
  ],
  "lastModified": "2026-06-17T10:19:00.143",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:hcltech:bigfix_platform:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "655B6D28-5486-4ACF-B28F-7346BFB377D0",
              "versionEndIncluding": "11.0.5",
              "versionStartIncluding": "11.0.0"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "psirt@hcl.com"
}