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CVE-2023-5717

Estado: ModificadaAlta (7.8)—PoC
Gravedad7.8Alta · CVSS 3.1
Probabilidad de explotación0.85 %mayor que el 58 % de las CVE
Explotación activaNono figura en el catálogo de CISA
Exploit públicoDisponiblePrueba de concepto en GitHub (no verificada)

Se puede aprovechar una vulnerabilidad de escritura fuera de límites del montón en el componente Linux Kernel Performance Events (perf) del kernel de Linux para lograr una escalada de privilegios local. Si se llama a perf_read_group() mientras la lista de hermanos de un evento es más pequeña que la lista de hermanos de su hijo, puede incrementar o escribir en ubicaciones de memoria fuera del búfer asignado. Recomendamos actualizar después del commit 32671e3799ca2e4590773fd0e63aaa4229e50c06.

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
0.85 %
Percentil entre todas las CVEs puntuadas
58
Fecha de la puntuación
20/10/2026

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).

Exploits públicos

Hay código de explotación o plantillas de detección públicos. No es lo mismo que explotación activa confirmada (KEV), pero aumenta el riesgo: parchee con prioridad.

⚠️ Las pruebas de concepto de GitHub no están verificadas: algunas son falsas o contienen malware. No las ejecute nunca fuera de un laboratorio aislado.

Tecnologías afectadas (1)

Linux — Linux Kernel

CWE

Referencias

Mostrar las 12 referencias

JSON original (NVD)

Mostrar
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