CVE-2022-49508

Estado: ModificadaAlta (7.8)—

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

HID: elan: Fix potential double free in elan_input_configured

'input' is a managed resource allocated with devm_input_allocate_device(), so there is no need to call input_free_device() explicitly or there will be a double free.

According to the doc of devm_input_allocate_device(): * Managed input devices do not need to be explicitly unregistered or * freed as it will be done automatically when owner device unbinds from * its driver (or binding fails).

CVSS

Versión: 3.1
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Puntuación base: 7.8

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 0.30%
Percentil entre todas las CVEs puntuadas: 20
Fecha de la puntuación: 6/10/2026

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 escalation75 %
Impacto principalT1059 Command and Scripting Interpreterexecution65 %

Vulnerabilidad local (AV:L, PR:L) de doble liberación (CWE-415) en controlador HID que permite ejecución de código con contexto de usuario privilegiado en el kernel Linux.

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

Execution Prevention Threat Intelligence Program Restrict Web-Based Content Privileged Account Management Limit Software Installation Behavior Prevention on Endpoint

Tecnologías afectadas (1)

Linux — Linux Kernel

CWE

CWE-415
CWE-415

Referencias

JSON original (NVD)

Mostrar

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      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nHID: elan: Fix potential double free in elan_input_configured\n\n'input' is a managed resource allocated with devm_input_allocate_device(),\nso there is no need to call input_free_device() explicitly or\nthere will be a double free.\n\nAccording to the doc of devm_input_allocate_device():\n * Managed input devices do not need to be explicitly unregistered or\n * freed as it will be done automatically when owner device unbinds from\n * its driver (or binding fails)."
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