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CVE-2025-68805

Estado: AplazadaAlta (7.8)—

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

fuse: fix io-uring list corruption for terminated non-committed requests

When a request is terminated before it has been committed, the request is not removed from the queue's list. This leaves a dangling list entry that leads to list corruption and use-after-free issues.

Remove the request from the queue's list for terminated non-committed requests.

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.

Acceso local sin interacción (AV:L/PR:L/UI:N) permite escalada de privilegios. Corrupción de memoria en kernel FUSE causa DoS y posible lectura de datos sensibles del kernel.

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 ProgramFilter Network TrafficExecution PreventionApplication Isolation and SandboxingExploit ProtectionUpdate Software

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)

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{
  "id": "CVE-2025-68805",
  "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": "c090c8abae4b6b77a1bee116aa6c385456ebef96",
              "lessThan": "a6d1f1ace16d0e777a85f84267160052d3499b6e",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "c090c8abae4b6b77a1bee116aa6c385456ebef96",
              "lessThan": "95c39eef7c2b666026c69ab5b30471da94ea2874",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "fs/fuse/dev_uring.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.14"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "6.14",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "6.18.3",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "status": "unaffected",
              "version": "6.19",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "fs/fuse/dev_uring.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-01-13T16:16:02.637",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/95c39eef7c2b666026c69ab5b30471da94ea2874",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/a6d1f1ace16d0e777a85f84267160052d3499b6e",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Deferred",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfuse: fix io-uring list corruption for terminated non-committed requests\n\nWhen a request is terminated before it has been committed, the request\nis not removed from the queue's list. This leaves a dangling list entry\nthat leads to list corruption and use-after-free issues.\n\nRemove the request from the queue's list for terminated non-committed\nrequests."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nfuse: corrige la corrupción de la lista de io-uring para solicitudes terminadas no confirmadas\n\nCuando una solicitud es terminada antes de que haya sido confirmada, la solicitud no es eliminada de la lista de la cola. Esto deja una entrada de lista colgante que lleva a la corrupción de la lista y a problemas de uso después de liberación.\n\nEliminar la solicitud de la lista de la cola para solicitudes terminadas no confirmadas."
    }
  ],
  "lastModified": "2026-07-30T06:24:46.177",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}