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CVE-2017-7487

Estado: ModificadaAlta (7.8)—
Gravedad7.8Alta · CVSS 3.1
Probabilidad de explotación0.38 %mayor que el 31 % de las CVE
Explotación activaNono figura en el catálogo de CISA
Exploit públicoNo conocidosin código público localizado

La función ipxitf_ioctl en el archivo net/ipx/af_ipx.c en el kernel de Linux hasta la versión 4.11.1, maneja inapropiadamente conteos de referencias, lo que permite a los usuarios locales causar una denegación de servicio (uso de memoria previamente liberada) o posiblemente tener otro impacto no especificado por medio de una llamada ioctl SIOCGIFADDR fallida para una interfaz de IPX.

CVSS

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

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días
0.38 %
Percentil entre todas las CVEs puntuadas
31
Fecha de la puntuación
23/10/2026

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).

Tecnologías afectadas (2)

Debian — Debian LinuxLinux — Linux Kernel

CWE

Referencias

Mostrar las 16 referencias

JSON original (NVD)

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      "value": "The ipxitf_ioctl function in net/ipx/af_ipx.c in the Linux kernel through 4.11.1 mishandles reference counts, which allows local users to cause a denial of service (use-after-free) or possibly have unspecified other impact via a failed SIOCGIFADDR ioctl call for an IPX interface."
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  "lastModified": "2026-06-17T01:24:27.020",
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