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CVE-2026-64011

Estado: Pendiente de análisisAlta (7.8)—

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

nfc: llcp: Fix use-after-free in llcp_sock_release()

llcp_sock_release() unconditionally unlinks the socket from the local sockets list. However, if the socket is still in connecting state, it is on the connecting list.

Fix this by checking the socket state and unlinking from the correct list.

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.

AV:L/PR:L sin UI indica escalada de privilegios local. Use-after-free en kernel NFC/LLCP puede causar DoS o corrupción de memoria con privilegios elevados.

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

User Account ManagementThreat Intelligence ProgramFilter Network TrafficExecution PreventionAuditApplication 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-2026-64011",
  "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": [
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              "status": "affected",
              "version": "b4011239a08e7e6c2c6e970dfa9e8ecb73139261",
              "lessThan": "89ba026747019ee643d29407435ddc118e6ca908",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "b4011239a08e7e6c2c6e970dfa9e8ecb73139261",
              "lessThan": "fb29f6bbe433f3decad227588809636c25f2a287",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "b4011239a08e7e6c2c6e970dfa9e8ecb73139261",
              "lessThan": "2dfdaaf7d933b676124aadec6698825e95f94fe9",
              "versionType": "git"
            },
            {
              "status": "affected",
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              "lessThan": "e00f50f8697724a6f1d2d35744c1332c9912dac5",
              "versionType": "git"
            },
            {
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              "lessThan": "cdc17e09a636c7f936f771902535a7515a7608fc",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "b4011239a08e7e6c2c6e970dfa9e8ecb73139261",
              "lessThan": "912ebc49d4406a17fe73e5671d674fbc2f6b2634",
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            },
            {
              "status": "affected",
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              "lessThan": "bc421d0826dedbba37580a25405eafb599e76d42",
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            },
            {
              "status": "affected",
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              "lessThan": "f4268b466190dae95a7585f69b4f1f8ad097632c",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "da989ee1c7702050741a551df6866cc1588f277b",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "3.10.10",
              "lessThan": "3.11",
              "versionType": "semver"
            }
          ],
          "programFiles": [
            "net/nfc/llcp_sock.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "3.11"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "3.11",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "5.10.259",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "status": "unaffected",
              "version": "5.15.210",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "status": "unaffected",
              "version": "6.1.176",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "status": "unaffected",
              "version": "6.6.143",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "status": "unaffected",
              "version": "6.12.93",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "status": "unaffected",
              "version": "6.18.35",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "status": "unaffected",
              "version": "7.0.12",
              "versionType": "semver",
              "lessThanOrEqual": "7.0.*"
            },
            {
              "status": "unaffected",
              "version": "7.1",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "net/nfc/llcp_sock.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-07-19T16:17:40.933",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/2dfdaaf7d933b676124aadec6698825e95f94fe9",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/89ba026747019ee643d29407435ddc118e6ca908",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/912ebc49d4406a17fe73e5671d674fbc2f6b2634",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/bc421d0826dedbba37580a25405eafb599e76d42",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/cdc17e09a636c7f936f771902535a7515a7608fc",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/e00f50f8697724a6f1d2d35744c1332c9912dac5",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/f4268b466190dae95a7585f69b4f1f8ad097632c",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/fb29f6bbe433f3decad227588809636c25f2a287",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Awaiting Analysis",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnfc: llcp: Fix use-after-free in llcp_sock_release()\n\nllcp_sock_release() unconditionally unlinks the socket from the local\nsockets list.  However, if the socket is still in connecting state, it\nis on the connecting list.\n\nFix this by checking the socket state and unlinking from the correct list."
    }
  ],
  "lastModified": "2026-07-30T14:59:47.950",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}