« Volver al listado

CVE-2026-90227

Estado: RecibidaAlta (7.8)—

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

nvme/ioctl: check SUBMIT_IO with nvme_cmd_allowed()

Unlike IO_CMD / IO64_CMD, NVME_IOCTL_SUBMIT_IO never calls nvme_cmd_allowed(). Unprivileged callers can thus issue I/O on a partition device or write through a read-only file descriptor.

Pass flags and open_for_write through and reject disallowed commands with -EACCES.

CVSS

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).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

Vulnerabilidad de escalada de privilegios local (AV:L, PR:L) en ioctl de NVMe que permite a usuarios sin privilegios eludir restricciones nvme_cmd_allowed(), accediendo a I/O en particiones y escribiendo sin permisos.

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Threat Intelligence ProgramRestrict File and Directory PermissionsRemote Data StorageExecution PreventionEncrypt Sensitive InformationApplication Isolation and Sandboxing

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-2026-90227",
  "cveTags": [],
  "metrics": {
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.8,
          "attackVector": "LOCAL",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 1.8
      }
    ]
  },
  "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": "a53295b6998f62d961c29e54051c1cf1d738c2b3",
              "lessThan": "c35cd98eed1a863e8dd51073953563cd8c907f68",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "a53295b6998f62d961c29e54051c1cf1d738c2b3",
              "lessThan": "95b0591d51dbf9e618d7845883d535e88ad7c8af",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "a53295b6998f62d961c29e54051c1cf1d738c2b3",
              "lessThan": "736b7c6adc7a65c4411beff197b6a634f7a6ca27",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "a53295b6998f62d961c29e54051c1cf1d738c2b3",
              "lessThan": "b116e9dae433ff631f94c36c61a7a78fe400ed1e",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "a53295b6998f62d961c29e54051c1cf1d738c2b3",
              "lessThan": "b53d495c7f0db46b6748b5ade48371a10dd5d3bc",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "drivers/nvme/host/ioctl.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "3.3"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "3.3",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "6.6.157",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "status": "unaffected",
              "version": "6.12.110",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "status": "unaffected",
              "version": "6.18.52",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "status": "unaffected",
              "version": "7.2.6",
              "versionType": "semver",
              "lessThanOrEqual": "7.2.*"
            },
            {
              "status": "unaffected",
              "version": "7.3-rc1",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "drivers/nvme/host/ioctl.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-09-17T17:17:18.400",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/736b7c6adc7a65c4411beff197b6a634f7a6ca27",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/95b0591d51dbf9e618d7845883d535e88ad7c8af",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/b116e9dae433ff631f94c36c61a7a78fe400ed1e",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/b53d495c7f0db46b6748b5ade48371a10dd5d3bc",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/c35cd98eed1a863e8dd51073953563cd8c907f68",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Received",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnvme/ioctl: check SUBMIT_IO with nvme_cmd_allowed()\n\nUnlike IO_CMD / IO64_CMD, NVME_IOCTL_SUBMIT_IO never calls\nnvme_cmd_allowed(). Unprivileged callers can thus issue I/O on a\npartition device or write through a read-only file descriptor.\n\nPass flags and open_for_write through and reject disallowed commands\nwith -EACCES."
    }
  ],
  "lastModified": "2026-09-18T18:17:47.500",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}