CVE-2025-40051

Estado: AplazadaAlta (7.8)—

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

vhost: vringh: Modify the return value check

The return value of copy_from_iter and copy_to_iter can't be negative, check whether the copied lengths are equal.

CVSS

Versión: 3.1
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Puntuación base: 7.8

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 0.17%
Percentil entre todas las CVEs puntuadas: 5
Fecha de la puntuación: 6/10/2026

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).

🎯 Técnicas ATT&CK

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

ExplotaciónT1068 Exploitation for Privilege Escalationprivilege escalation85 %
Impacto principalT1059 Command and Scripting Interpreterexecution70 %
Impacto secundarioT1565 Data Manipulationimpact65 %

Vulnerabilidad local en el kernel Linux (AV:L, PR:L) sin interacción del usuario. Permite escalar privilegios mediante ejecución de código arbitrario en contexto de kernel a través de vhost/vringh.

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

Execution Prevention Threat Intelligence Program Restrict Web-Based Content Restrict File and Directory Permissions Privileged Account Management Remote Data Storage

Tecnologías afectadas (1)

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

Linux — Linux Kernel^AI

Referencias

JSON original (NVD)

Mostrar

{
  "id": "CVE-2025-40051",
  "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": "309bba39c945ac8ab8083ac05cd6cfe5822968e0",
              "lessThan": "db042925a5ab7a550b710addeadbf6f72e3a8a4b",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "309bba39c945ac8ab8083ac05cd6cfe5822968e0",
              "lessThan": "78dc7362662fedaa1928fb8e4f27401c8322905d",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "309bba39c945ac8ab8083ac05cd6cfe5822968e0",
              "lessThan": "baa37b1c7e29546f79c39bef0d18c4edc9f39bb1",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "309bba39c945ac8ab8083ac05cd6cfe5822968e0",
              "lessThan": "cfa0654402c06d086201a9ff167eb95da5844fc3",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "309bba39c945ac8ab8083ac05cd6cfe5822968e0",
              "lessThan": "82a8d0fda55b35361ee7f35b54fa2b66d7847d2b",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "drivers/vhost/vringh.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.0"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "6.0",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "6.1.156",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "status": "unaffected",
              "version": "6.6.112",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "status": "unaffected",
              "version": "6.12.53",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "status": "unaffected",
              "version": "6.17.3",
              "versionType": "semver",
              "lessThanOrEqual": "6.17.*"
            },
            {
              "status": "unaffected",
              "version": "6.18",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "drivers/vhost/vringh.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2025-10-28T12:15:39.273",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/78dc7362662fedaa1928fb8e4f27401c8322905d",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/82a8d0fda55b35361ee7f35b54fa2b66d7847d2b",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/baa37b1c7e29546f79c39bef0d18c4edc9f39bb1",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/cfa0654402c06d086201a9ff167eb95da5844fc3",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/db042925a5ab7a550b710addeadbf6f72e3a8a4b",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Deferred",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nvhost: vringh: Modify the return value check\n\nThe return value of copy_from_iter and copy_to_iter can't be negative,\ncheck whether the copied lengths are equal."
    }
  ],
  "lastModified": "2026-07-30T06:24:08.410",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}