CVE-2025-39971

Estado: AplazadaAlta (8.8)—

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

i40e: fix idx validation in config queues msg

Ensure idx is within range of active/initialized TCs when iterating over vf->ch[idx] in i40e_vc_config_queues_msg().

CVSS

Versión: 3.1
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Puntuación base: 8.8

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 0.15%
Percentil entre todas las CVEs puntuadas: 4
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 escalation95 %
Impacto principalT1059 Command and Scripting Interpreterexecution80 %
Impacto secundarioT1499.004 Application or System Exploitationimpact70 %

Vulnerabilidad local en kernel Linux (AV:L, PR:L) sin interacción del usuario, permite escalada de privilegios (S:C, acceso a estructuras de kernel). Falta validación de índice en iteración de canales virtuales (vf->ch[idx]), causando acceso a memoria no inicializada o corrupción con C:H/I:H/A:H.

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 Filter Network Traffic

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

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      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ni40e: fix idx validation in config queues msg\n\nEnsure idx is within range of active/initialized TCs when iterating over\nvf->ch[idx] in i40e_vc_config_queues_msg()."
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