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CVE-2026-63931

Estado: Pendiente de análisisSin puntuar—

In the Linux kernel, the following vulnerability has been resolved:

iio: chemical: scd30: fix division by zero in write_raw

Add a zero check for val2 before using it as a divisor when setting the sampling frequency. A user writing a zero fractional part to the sampling_frequency sysfs attribute triggers a division by zero in the kernel.

CVSS

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

Probabilidad de explotación (EPSS)

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

JSON original (NVD)

Mostrar
{
  "id": "CVE-2026-63931",
  "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": "64b3d8b1b0f5c16c19045785e4da8391ae35ec99",
              "lessThan": "4748bce423a363bb8a85a624faeb8f54fe331611",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "64b3d8b1b0f5c16c19045785e4da8391ae35ec99",
              "lessThan": "6308b812acdcac38cbfe1af0b1524c3375f408a5",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "64b3d8b1b0f5c16c19045785e4da8391ae35ec99",
              "lessThan": "c7a740bf75554b051fabb17596ca6e483d6e6d90",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "64b3d8b1b0f5c16c19045785e4da8391ae35ec99",
              "lessThan": "e85bc501947f5ae16dd9adc01162b76d55ab7962",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "64b3d8b1b0f5c16c19045785e4da8391ae35ec99",
              "lessThan": "d98c2e69aab905d1b19a69ffe584efa46a9efd42",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "64b3d8b1b0f5c16c19045785e4da8391ae35ec99",
              "lessThan": "5e4d34092a5ebfbc3a45a180c76ecb1cdbbedd53",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "64b3d8b1b0f5c16c19045785e4da8391ae35ec99",
              "lessThan": "2c50c017df97bfb425038efdfb8514c7bcd08564",
              "versionType": "git"
            },
            {
              "status": "affected",
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              "lessThan": "5aba4f94b225617a55fed442a70329b2ee19c0a5",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "drivers/iio/chemical/scd30_core.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.9"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "5.9",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "5.10.259",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "status": "unaffected",
              "version": "5.15.210",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "status": "unaffected",
              "version": "6.1.176",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "status": "unaffected",
              "version": "6.6.143",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "status": "unaffected",
              "version": "6.12.93",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "status": "unaffected",
              "version": "6.18.35",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "status": "unaffected",
              "version": "7.0.12",
              "versionType": "semver",
              "lessThanOrEqual": "7.0.*"
            },
            {
              "status": "unaffected",
              "version": "7.1",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "drivers/iio/chemical/scd30_core.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-07-19T16:17:11.507",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/2c50c017df97bfb425038efdfb8514c7bcd08564",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/4748bce423a363bb8a85a624faeb8f54fe331611",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/5aba4f94b225617a55fed442a70329b2ee19c0a5",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/5e4d34092a5ebfbc3a45a180c76ecb1cdbbedd53",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/6308b812acdcac38cbfe1af0b1524c3375f408a5",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/c7a740bf75554b051fabb17596ca6e483d6e6d90",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/d98c2e69aab905d1b19a69ffe584efa46a9efd42",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/e85bc501947f5ae16dd9adc01162b76d55ab7962",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Awaiting Analysis",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\niio: chemical: scd30: fix division by zero in write_raw\n\nAdd a zero check for val2 before using it as a divisor when setting the\nsampling frequency. A user writing a zero fractional part to the\nsampling_frequency sysfs attribute triggers a division by zero in the\nkernel."
    }
  ],
  "lastModified": "2026-07-27T17:44:23.777",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}