CVE-2026-21765

{
  "id": "CVE-2026-21765",
  "sourceIdentifier": "[email protected]",
  "published": "2026-04-02T00:16:23.953",
  "lastModified": "2026-10-26T21:10:00.170",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "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."
    },
    {
      "lang": "es",
      "value": "HCL BigFix Platform se ve afectada por permisos inseguros en claves criptográficas privadas. Las claves criptográficas privadas ubicadas en una máquina host de Windows podrían estar sujetas a permisos de sistema de archivos excesivamente permisivos."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "HCLSoftware",
          "product": "BigFix Platform",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "11.0.0 - 11.0.5",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
          "baseScore": 8.8,
          "baseSeverity": "HIGH",
          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "CHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 2.0,
        "impactScore": 6.0
      },
      {
        "source": "[email protected]",
        "type": "Primary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.9
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-04-02T18:20:48.284525Z",
          "id": "CVE-2026-21765",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-276"
        },
        {
          "lang": "en",
          "value": "CWE-732"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:hcltech:bigfix_platform:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "11.0.0",
              "versionEndIncluding": "11.0.5",
              "matchCriteriaId": "655B6D28-5486-4ACF-B28F-7346BFB377D0"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://support.hcl-software.com/csm?id=kb_article&sysparm_article=KB0129906",
      "source": "[email protected]",
      "tags": [
        "Vendor Advisory"
      ]
    }
  ]
}