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CVE-2026-14960

Full vulnerability record from the local CVENow database.

Description

Pegatron `Tdelo64.sys` improperly exposes privileged hardware access functionality through the `\\.\TdeIo` device interface. IOCTL handlers including `TDE_IOCTL_INDEXIO_READ` and `TDE_IOCTL_INDEXIO_WRITE` permit unprivileged user-mode callers to perform arbitrary hardware I/O port reads and writes without authorization checks. A local attacker can abuse this functionality to manipulate hardware registers, tamper with firmware-related interfaces, cause system instability, or establish persistent low-level compromise.

Severity
CRITICAL
CVSS score
9.8 (v3.1)
Vulnerability status
Deferred
Source identifier
Published
2026-07-15 18:16:44.540000
Last modified
2026-10-24 21:10:00.130000
View original CVE JSON
{
  "id": "CVE-2026-14960",
  "sourceIdentifier": "[email protected]",
  "published": "2026-07-15T18:16:44.540",
  "lastModified": "2026-10-24T21:10:00.130",
  "vulnStatus": "Deferred",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Pegatron `Tdelo64.sys` improperly exposes privileged hardware access functionality through the `\\\\.\\TdeIo` device interface. IOCTL handlers including `TDE_IOCTL_INDEXIO_READ` and `TDE_IOCTL_INDEXIO_WRITE` permit unprivileged user-mode callers to perform arbitrary hardware I/O port reads and writes without authorization checks. A local attacker can abuse this functionality to manipulate hardware registers, tamper with firmware-related interfaces, cause system instability, or establish persistent low-level compromise."
    },
    {
      "lang": "es",
      "value": "Pegatron ’Tdelo64.sys’ expone indebidamente la funcionalidad de acceso privilegiado al hardware a través de la interfaz de dispositivo ’\\\\.\\TdeIo’. Los controladores IOCTL, incluyendo ’TDE_IOCTL_INDEXIO_READ’ y ’TDE_IOCTL_INDEXIO_WRITE’, permiten a los llamadores en modo de usuario sin privilegios realizar lecturas y escrituras arbitrarias en puertos de E/S de hardware sin comprobaciones de autorización. Un atacante local puede abusar de esta funcionalidad para manipular registros de hardware, alterar interfaces relacionadas con el firmware, causar inestabilidad en el sistema o establecer un compromiso persistente de bajo nivel."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "Pegatron Corp.",
          "product": "Tdelo64.sys",
          "versions": [
            {
              "version": "02-17-2025",
              "lessThanOrEqual": "02-17-2025",
              "versionType": "custom",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "baseScore": 9.8,
          "baseSeverity": "CRITICAL",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 5.9
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-07-16T15:28:58.803638Z",
          "id": "CVE-2026-14960",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-269"
        },
        {
          "lang": "en",
          "value": "CWE-284"
        },
        {
          "lang": "en",
          "value": "CWE-668"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://kb.cert.org/vuls/id/529388",
      "source": "[email protected]"
    }
  ]
}