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CVE-2026-72399

Estado: RecibidaCrítica (9.8)—

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

net: enetc: check the number of BDs needed for xdp_frame

The size of xdp_redirect_arr array is ENETC_MAX_SKB_FRAGS. However, the number of fragments contained in xdp_frame may be greater than or equal to ENETC_MAX_SKB_FRAGS, which will cause the access to xdp_redirect_arr to be out of bounds.

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 remota de kernel Linux (AV:N, PR:N, UI:N) que causa desbordamiento de buffer en el driver enetc al procesar tramas XDP con fragmentos excesivos, resultando en DoS y lectura de memoria.

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

Filter Network TrafficVulnerability ScanningPrivileged Account ManagementNetwork SegmentationLimit Access to Resource Over NetworkApplication 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-2026-72399",
  "cveTags": [],
  "metrics": {
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 9.8,
          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "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": "9d2b68cc108db2fdb35022ed2d88cfb305c441a6",
              "lessThan": "1ecb199b0e6d12ab6c26c0b7edf1a8f4472d9aed",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "9d2b68cc108db2fdb35022ed2d88cfb305c441a6",
              "lessThan": "f55276160ffad3e235b657ee4b7304eb99b90e5c",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "9d2b68cc108db2fdb35022ed2d88cfb305c441a6",
              "lessThan": "cfbc6e9b84dcc0aa2d65c84ea4745af327763209",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "9d2b68cc108db2fdb35022ed2d88cfb305c441a6",
              "lessThan": "1681cc7974a6123f5d5740b03bc11e4784bd2542",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "9d2b68cc108db2fdb35022ed2d88cfb305c441a6",
              "lessThan": "d22829101ab675607ad6c3d420fb3ab875f46bbb",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "9d2b68cc108db2fdb35022ed2d88cfb305c441a6",
              "lessThan": "555c5475e787802eeae0d2b91c2f66c330db2767",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "drivers/net/ethernet/freescale/enetc/enetc.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.13"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "5.13",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "6.1.178",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "status": "unaffected",
              "version": "6.6.145",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "status": "unaffected",
              "version": "6.12.97",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "status": "unaffected",
              "version": "6.18.40",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "status": "unaffected",
              "version": "7.1.5",
              "versionType": "semver",
              "lessThanOrEqual": "7.1.*"
            },
            {
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "drivers/net/ethernet/freescale/enetc/enetc.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-08-15T06:22:13.460",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/1681cc7974a6123f5d5740b03bc11e4784bd2542",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/1ecb199b0e6d12ab6c26c0b7edf1a8f4472d9aed",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/555c5475e787802eeae0d2b91c2f66c330db2767",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/cfbc6e9b84dcc0aa2d65c84ea4745af327763209",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/d22829101ab675607ad6c3d420fb3ab875f46bbb",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/f55276160ffad3e235b657ee4b7304eb99b90e5c",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Received",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: enetc: check the number of BDs needed for xdp_frame\n\nThe size of xdp_redirect_arr array is ENETC_MAX_SKB_FRAGS. However, the\nnumber of fragments contained in xdp_frame may be greater than or equal\nto ENETC_MAX_SKB_FRAGS, which will cause the access to xdp_redirect_arr\nto be out of bounds."
    }
  ],
  "lastModified": "2026-08-17T06:19:06.500",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}