CVE-2026-74592

Estado: RecibidaAlta (8.1)—

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

ima: Instantiate file_truncate and path_truncate hooks

Instantiate the file_truncate and path_truncate LSM hooks to reset the action cache flags (IMA_DONE_MASK) as soon as truncation is requested, so the file, based on policy, is re-collected, re-measured, re-audited, and re-appraised on next access.

CVSS

Versión: 3.1
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Puntuación base: 8.1

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 0.48%
Percentil entre todas las CVEs puntuadas: 39
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.

ExplotaciónT1210 Exploitation of Remote Serviceslateral movement55 %
Impacto principalT1565.001 Stored Data Manipulationimpact45 %
Impacto secundarioT1552.001 Credentials In Filescredential access35 %

Requiere PR:L (privilegios autenticados) en red. Impacto: manipulación de datos (truncamiento de ficheros IMA) y lectura de contenido previo en caché sin re-validación.

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

Restrict File and Directory Permissions Vulnerability Scanning User Training Threat Intelligence Program Privileged Account Management Password Policies

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-2026-74592",
  "cveTags": [],
  "metrics": {
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 8.1,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.2,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "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": "3323eec921efd815178a23107ab63588c605c0b2",
              "lessThan": "5f46705d96eb60587aa7035acfcbec977e08d620",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "3323eec921efd815178a23107ab63588c605c0b2",
              "lessThan": "dd21c96a71e876c8df9ec546b885a2c5f47bbb05",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "3323eec921efd815178a23107ab63588c605c0b2",
              "lessThan": "0baed1fa2184c81e4baf76f445d3faa4b738c8f7",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "3323eec921efd815178a23107ab63588c605c0b2",
              "lessThan": "b80bed5c871a80151351342c065579405ce77145",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "security/integrity/ima/ima_main.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "2.6.30"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "2.6.30",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "6.12.104",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "status": "unaffected",
              "version": "6.18.45",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "status": "unaffected",
              "version": "7.1.9",
              "versionType": "semver",
              "lessThanOrEqual": "7.1.*"
            },
            {
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "security/integrity/ima/ima_main.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-08-22T16:16:31.460",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/0baed1fa2184c81e4baf76f445d3faa4b738c8f7",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/5f46705d96eb60587aa7035acfcbec977e08d620",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/b80bed5c871a80151351342c065579405ce77145",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/dd21c96a71e876c8df9ec546b885a2c5f47bbb05",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Received",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nima: Instantiate file_truncate and path_truncate hooks\n\nInstantiate the file_truncate and path_truncate LSM hooks to reset the\naction cache flags (IMA_DONE_MASK) as soon as truncation is requested,\nso the file, based on policy, is re-collected, re-measured, re-audited,\nand re-appraised on next access."
    }
  ],
  "lastModified": "2026-08-25T06:18:34.637",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}