CVE-2026-88781

{
  "id": "CVE-2026-88781",
  "sourceIdentifier": "54bf65a7-a193-42d2-b1ba-8e150d3c35e1",
  "published": "2026-10-27T03:16:26.663",
  "lastModified": "2026-10-27T16:03:45.247",
  "vulnStatus": "Awaiting Analysis",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Untrusted Pointer Dereference in ASUS certain motherboards firmware allows a kernel-level privileges user can supply an arbitrary memory address via an I/O command, leading to subsequent system information being tampered with or causing a system crash.\nRefer to the 'Security Update for Multiple ASUS Motherboards' section on the ASUS Security Advisory for more information."
    }
  ],
  "affected": [
    {
      "source": "54bf65a7-a193-42d2-b1ba-8e150d3c35e1",
      "affectedData": [
        {
          "vendor": "ASUS",
          "product": "motherboards firmware",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "A520/B550 series Before 3644 4304",
              "versionType": "custom",
              "status": "affected"
            },
            {
              "version": "X570 Series Before 5054",
              "versionType": "custom",
              "status": "affected"
            },
            {
              "version": "A620/A620A Series Before 4003 4004",
              "status": "affected"
            },
            {
              "version": "B650 Series Before 1303 4003 4004",
              "status": "affected"
            },
            {
              "version": "X670 Series Before 4003 4004",
              "status": "affected"
            },
            {
              "version": "B840 Series Before 1804",
              "status": "affected"
            },
            {
              "version": "B850 Series Before 1103 1804 2503",
              "status": "affected"
            },
            {
              "version": "X870 Series Before 1804 2503",
              "status": "affected"
            },
            {
              "version": "X870E Series \tBefore 1103 2503",
              "status": "affected"
            },
            {
              "version": "Knoll Series Before 4003",
              "status": "affected"
            },
            {
              "version": "TRX50 Series Before 0703 1403",
              "status": "affected"
            },
            {
              "version": "W790 Series Before 2101",
              "status": "affected"
            },
            {
              "version": "WRX90 Series Before 1403",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV40": [
      {
        "source": "54bf65a7-a193-42d2-b1ba-8e150d3c35e1",
        "type": "Secondary",
        "cvssData": {
          "version": "4.0",
          "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
          "baseScore": 6.8,
          "baseSeverity": "MEDIUM",
          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "privilegesRequired": "HIGH",
          "userInteraction": "NONE",
          "vulnConfidentialityImpact": "NONE",
          "vulnIntegrityImpact": "HIGH",
          "vulnAvailabilityImpact": "HIGH",
          "subConfidentialityImpact": "NONE",
          "subIntegrityImpact": "NONE",
          "subAvailabilityImpact": "NONE",
          "exploitMaturity": "NOT_DEFINED",
          "confidentialityRequirement": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "availabilityRequirement": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "valueDensity": "NOT_DEFINED",
          "vulnerabilityResponseEffort": "NOT_DEFINED",
          "providerUrgency": "NOT_DEFINED"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "54bf65a7-a193-42d2-b1ba-8e150d3c35e1",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-822"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://www.asus.com/security-advisory",
      "source": "54bf65a7-a193-42d2-b1ba-8e150d3c35e1"
    }
  ]
}