CVE-2022-48966
Estado: AnalizadaAlta (7.1)—
In the Linux kernel, the following vulnerability has been resolved:
net: mvneta: Prevent out of bounds read in mvneta_config_rss()
The pp->indir[0] value comes from the user. It is passed to:
inside the mvneta_percpu_elect() function. It needs bounds checkeding to ensure that it is not beyond the end of the cpu bitmap.
Detalles técnicos trazas, registros y código del informe original
if (cpu_online(pp->rxq_def))
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
- Puntuación base: 7.1
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.24%
- Percentil entre todas las CVEs puntuadas: 14
- 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.
- Explotación
T1068Exploitation for Privilege Escalationprivilege escalation85 % - Impacto principal
T1005Data from Local Systemcollection75 % - Impacto secundario
T1499.004Application or System Exploitationimpact70 %
AV:L/PR:L/UI:N: acceso local con privilegios, sin interacción. CWE-125 (out-of-bounds read) permite lectura de memoria kernel. Potencial DoS por acceso fuera de límites en bitmap de CPUs.
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
Tecnologías afectadas (1)
CWE
- CWE-125
Referencias
- https://git.kernel.org/stable/c/146ebee8fcdb349d7ec0e49915e6cdafb92544ae
- https://git.kernel.org/stable/c/3ceffb8f410b93553fb16fe7e84aa0d35b3ba79b
- https://git.kernel.org/stable/c/47a1a2f6cd5ec3a4f8a2d9bfa1e0605347cdb92c
- https://git.kernel.org/stable/c/5a142486a0db6b0b85031f22d69acd0cdcf8f72b
- https://git.kernel.org/stable/c/6ca0a506dddc3e1d636935eef339576b263bf3d8
- https://git.kernel.org/stable/c/a6b30598fec84f8809f5417cde73071ca43e8471
- https://git.kernel.org/stable/c/e8b4fc13900b8e8be48debffd0dfd391772501f7
- https://git.kernel.org/stable/c/eec1fc21edc2bb99c9e66cf66f0b5d4d643fbb50
JSON original (NVD)
Mostrar
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