CVE-2026-43239
Estado: AnalizadaAlta (8.8)—
In the Linux kernel, the following vulnerability has been resolved:
smb: client: prevent races in ->query_interfaces()
It was possible for two query interface works to be concurrently trying to update the interfaces.
Prevent this by checking and updating iface_last_update under iface_lock.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- Puntuación base: 8.8
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.35%
- Percentil entre todas las CVEs puntuadas: 27
- Fecha de la puntuación: 5/10/2026
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
T1203Exploitation for Client Executionexecution85 % - Impacto principal
T1499.004Application or System Exploitationimpact60 %
UI:R en CVSS indica interacción del usuario (T1203). Race condition en query_interfaces podría causar DoS por corrupción de estado sin sincronización adecuada.
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
- NVD-CWE-noinfo
Referencias
- https://git.kernel.org/stable/c/6287eefaf21ec805d42f941bd368018cf397a7f5
- https://git.kernel.org/stable/c/76cc4faba0343c6db945b8dc75425b33d633e1b8
- https://git.kernel.org/stable/c/93e8e3ee165ae4609a1222b516b573837103d2c3
- https://git.kernel.org/stable/c/ab6564f416a6eaf1199200b6100952407b438f7d
- https://git.kernel.org/stable/c/c3c06e42e1527716c54f3ad2ced6a034b5f3a489
JSON original (NVD)
Mostrar
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