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CVE-2026-98575

Estado: RecibidaSin puntuar—
Gravedad—Sin puntuar
Probabilidad de explotación0.21 %mayor que el 11 % de las CVE
Explotación activaNono figura en el catálogo de CISA
Exploit públicoNo conocidosin código público localizado

En el kernel de Linux se ha resuelto la siguiente vulnerabilidad:

nfc: pn533: corrige una lectura fuera de límites (OOB read) en pn533_acr122_is_rx_frame_valid()

frame->ccid.datalen se lee directamente de la trama de respuesta USB y se utiliza, sin comprobar, como índice de frame->data[]. Un dispositivo malicioso o con fallos puede establecer este campo a un valor arbitrario, lo que hace que el controlador lea muy por fuera del búfer recibido.

Acota ccid.datalen frente al tamaño máximo posible de trama ACR122 antes de utilizarlo. Esto sustituye la comprobación existente datalen == 0, ya que datalen < 2 ya cubre ese caso y, además, rechaza datalen == 1, que seguiría provocando un desbordamiento por defecto en el desplazamiento "datalen - 2" utilizado más abajo.

Traducción automática del texto original de NVD (en inglés).

CVSS

NVD no ha asignado puntuación CVSS a esta CVE (habitual desde el cambio de política de abril de 2026).

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días
0.21 %
Percentil entre todas las CVEs puntuadas
11
Fecha de la puntuación
20/10/2026

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).

Tecnologías afectadas (1)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Linux — Linux KernelAI

Referencias

Mostrar las 8 referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2026-98575",
  "cveTags": [],
  "metrics": {},
  "affected": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "affectedData": [
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "9815c7cf22daceabfb919ddcd6f2c80e049c1fbc",
              "lessThan": "8db3b1e012a8b25078dfa1efabe3d0cd2916dcba",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "9815c7cf22daceabfb919ddcd6f2c80e049c1fbc",
              "lessThan": "74b3fbc60907ee97e3af3249091f57351b53a6d6",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "9815c7cf22daceabfb919ddcd6f2c80e049c1fbc",
              "lessThan": "8a0f1bb790d964893db7fc59febda9a534db07b3",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "9815c7cf22daceabfb919ddcd6f2c80e049c1fbc",
              "lessThan": "ea82b7576793219fa10a8b545f8338998b2a9ce2",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "9815c7cf22daceabfb919ddcd6f2c80e049c1fbc",
              "lessThan": "72b8b2126e854d6756a1aa4bdc66d7457b832294",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "9815c7cf22daceabfb919ddcd6f2c80e049c1fbc",
              "lessThan": "e72cbedc4596e808d22dd2b9fff666ece76f8dd6",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "9815c7cf22daceabfb919ddcd6f2c80e049c1fbc",
              "lessThan": "2450a388367231fb7dd798538f393af227c00c4d",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "9815c7cf22daceabfb919ddcd6f2c80e049c1fbc",
              "lessThan": "b61732f47316d45f27706db7812950145d3327b5",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "drivers/nfc/pn533/usb.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.7"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "4.7",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "5.10.271",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "status": "unaffected",
              "version": "5.15.222",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "status": "unaffected",
              "version": "6.1.189",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "status": "unaffected",
              "version": "6.6.158",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "status": "unaffected",
              "version": "6.12.112",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "status": "unaffected",
              "version": "6.18.55",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "status": "unaffected",
              "version": "7.2.9",
              "versionType": "semver",
              "lessThanOrEqual": "7.2.*"
            },
            {
              "status": "unaffected",
              "version": "7.3",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "drivers/nfc/pn533/usb.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-10-18T16:17:09.810",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/2450a388367231fb7dd798538f393af227c00c4d",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/72b8b2126e854d6756a1aa4bdc66d7457b832294",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/74b3fbc60907ee97e3af3249091f57351b53a6d6",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/8a0f1bb790d964893db7fc59febda9a534db07b3",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/8db3b1e012a8b25078dfa1efabe3d0cd2916dcba",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/b61732f47316d45f27706db7812950145d3327b5",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/e72cbedc4596e808d22dd2b9fff666ece76f8dd6",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/ea82b7576793219fa10a8b545f8338998b2a9ce2",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Received",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnfc: pn533: fix OOB read in pn533_acr122_is_rx_frame_valid()\n\nframe->ccid.datalen is read directly from the USB response frame\nand used, unchecked, as an index into frame->data[]. A malicious or\nmalfunctioning device can set this field to an arbitrary value,\ncausing the driver to read far outside the received buffer.\n\nBound ccid.datalen against the maximum possible ACR122 frame size\nbefore using it. This replaces the existing datalen == 0 check,\nsince datalen < 2 already covers that case and additionally\nrejects datalen == 1, which would still underflow the\n\"datalen - 2\" offset used below."
    }
  ],
  "lastModified": "2026-10-19T10:19:16.573",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}