CVE-2026-6484

{
  "id": "CVE-2026-6484",
  "sourceIdentifier": "8338d8cb-57f7-4252-abc0-96fd13e98d21",
  "published": "2026-08-12T01:17:08.060",
  "lastModified": "2026-10-24T16:10:00.153",
  "vulnStatus": "Awaiting Analysis",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In an UEFI, Lack of verified boot to certain FV may cause arbitrary code execution."
    },
    {
      "lang": "es",
      "value": "En una UEFI, la falta de arranque verificado a ciertas FV puede causar ejecución de código arbitrario."
    }
  ],
  "affected": [
    {
      "source": "8338d8cb-57f7-4252-abc0-96fd13e98d21",
      "affectedData": [
        {
          "vendor": "Insyde Software",
          "product": "InsydeH2O",
          "defaultStatus": "unknown",
          "platforms": [
            "x86"
          ],
          "versions": [
            {
              "version": "See in the Solution",
              "status": "unknown"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "8338d8cb-57f7-4252-abc0-96fd13e98d21",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H",
          "baseScore": 8.2,
          "baseSeverity": "HIGH",
          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "HIGH",
          "userInteraction": "NONE",
          "scope": "CHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 1.5,
        "impactScore": 6.0
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-08-12T12:39:19.055017Z",
          "id": "CVE-2026-6484",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "8338d8cb-57f7-4252-abc0-96fd13e98d21",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-1277"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://www.insyde.com/security-pledge/sa-2026003/",
      "source": "8338d8cb-57f7-4252-abc0-96fd13e98d21"
    }
  ]
}