CVE-2026-97448

Estado: RecibidaAlta (7.7)—

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

ACPICA: Add validation for node in acpi_ns_build_normalized_path()

Add validation for node in acpi_ns_build_normalized_path() to prevent use-after-free vulnerabilities.

CVSS

Versión: 3.1
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Puntuación base: 7.7

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 0.14%
Percentil entre todas las CVEs puntuadas: 3
Fecha de la puntuación: 5/10/2026

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 principalT1499.004 Application or System Exploitationimpact60 %

Vulnerabilidad local (AV:L, PR:N) en kernel Linux con impacto alto en disponibilidad (A:H). T1068 por escalada local; T1499.004 (Endpoint Denial of Service) por potencial crash del sistema via use-after-free.

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 Program Filter Network Traffic Execution Prevention Application Isolation and Sandboxing Exploit Protection Update 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 Kernel^AI

Referencias

JSON original (NVD)

Mostrar

{
  "id": "CVE-2026-97448",
  "cveTags": [],
  "metrics": {
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.7,
          "attackVector": "LOCAL",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.2,
        "exploitabilityScore": 2.5
      }
    ]
  },
  "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": "d1e7ffe50ba588ddf7de520990815c37f31776d8",
              "lessThan": "087eed8b347e14864f8806fa1f5976c7dc2c6792",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "d1e7ffe50ba588ddf7de520990815c37f31776d8",
              "lessThan": "b06bb9b82c8f9a522dde213b1e0ddd535f22e3a2",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "d1e7ffe50ba588ddf7de520990815c37f31776d8",
              "lessThan": "90ebe7f8bb6ca1c6eadb16bed141ab8bb3dbab70",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "d1e7ffe50ba588ddf7de520990815c37f31776d8",
              "lessThan": "26dd27000e9540fcb594f15010b0696b03b0d240",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "d1e7ffe50ba588ddf7de520990815c37f31776d8",
              "lessThan": "babb146ceb79e71f328788f1e2c8c7c224026e61",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "d1e7ffe50ba588ddf7de520990815c37f31776d8",
              "lessThan": "21a73528579fcbd673b668bd27a05b658123bc1b",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "d1e7ffe50ba588ddf7de520990815c37f31776d8",
              "lessThan": "96b2b616870e46e2bc04efec03879683a0036e66",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "drivers/acpi/acpica/nsnames.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.3"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "4.3",
              "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": "6.12.111",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "status": "unaffected",
              "version": "6.18.53",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "drivers/acpi/acpica/nsnames.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-09-24T17:17:23.110",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/087eed8b347e14864f8806fa1f5976c7dc2c6792",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/21a73528579fcbd673b668bd27a05b658123bc1b",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/26dd27000e9540fcb594f15010b0696b03b0d240",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/90ebe7f8bb6ca1c6eadb16bed141ab8bb3dbab70",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/96b2b616870e46e2bc04efec03879683a0036e66",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/b06bb9b82c8f9a522dde213b1e0ddd535f22e3a2",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/babb146ceb79e71f328788f1e2c8c7c224026e61",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Received",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nACPICA: Add validation for node in acpi_ns_build_normalized_path()\n\nAdd validation for node in acpi_ns_build_normalized_path()\nto prevent use-after-free vulnerabilities."
    }
  ],
  "lastModified": "2026-10-03T11:17:56.417",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}