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CVE-2026-72371

Estado: RecibidaAlta (7.8)—

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

afs: Fix the volume AFS_VOLUME_RM_TREE is set on

Fix afs_insert_volume_into_cell() to set AFS_VOLUME_RM_TREE on the volume replaced, not the new volume, as it's now removed from the cell's volume tree. This will cause the old volume to be removed from the tree twice and the new volume never to be removed.

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 local (AV:L, PR:L) sin interacción del usuario en kernel Linux que causa doble liberación de memoria y corrupción de estructura de datos, permitiendo denegación de servicio o escalada de privilegios.

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 StorageFilter Network TrafficExecution PreventionEncrypt Sensitive Information

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-2026-72371",
  "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": "98fb5eaade749e9d366fdd1f622d560ad68bdedd",
              "lessThan": "6fa9a8a73e16aa22fce6e41cc00d59c767f0a540",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "9b4c95a63e2dfe5ea73d92fb82ec34c3efa76284",
              "lessThan": "c421bc6b957e56e45e12dbaeaf70a60db20d6465",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "c3215484ca1f64b6b8af03847856499e5364e65a",
              "lessThan": "1607075220cf57161d9116512994c159eacefc0d",
              "versionType": "git"
            },
            {
              "status": "affected",
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            },
            {
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              "versionType": "git"
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            {
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              "lessThan": "56b4e4b26f84411d880f968a539207b0a8889c8c",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "5.15.146",
              "lessThan": "5.15.212",
              "versionType": "semver"
            },
            {
              "status": "affected",
              "version": "6.1.70",
              "lessThan": "6.1.178",
              "versionType": "semver"
            },
            {
              "status": "affected",
              "version": "6.6.9",
              "lessThan": "6.6.145",
              "versionType": "semver"
            }
          ],
          "programFiles": [
            "fs/afs/volume.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.7"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "6.7",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "5.15.212",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "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": [
            "fs/afs/volume.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-08-15T06:22:10.570",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/158c5a0b1dfc0e6a419efe18404047a4d2dff59e",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/1607075220cf57161d9116512994c159eacefc0d",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/56b4e4b26f84411d880f968a539207b0a8889c8c",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/6fa9a8a73e16aa22fce6e41cc00d59c767f0a540",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/c421bc6b957e56e45e12dbaeaf70a60db20d6465",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/d0c8ad418b47891a03426c5e02ebb0537f8d68f8",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/d154c20837f379343f192d4b8d9dd4ef145562e6",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Received",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nafs: Fix the volume AFS_VOLUME_RM_TREE is set on\n\nFix afs_insert_volume_into_cell() to set AFS_VOLUME_RM_TREE on the volume\nreplaced, not the new volume, as it's now removed from the cell's volume\ntree.  This will cause the old volume to be removed from the tree twice and\nthe new volume never to be removed."
    }
  ],
  "lastModified": "2026-08-17T06:18:41.353",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}