CVE-2025-38729
Estado: ModificadaAlta (7.8)—
In the Linux kernel, the following vulnerability has been resolved:
ALSA: usb-audio: Validate UAC3 power domain descriptors, too
UAC3 power domain descriptors need to be verified with its variable bLength for avoiding the unexpected OOB accesses by malicious firmware, too.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Puntuación base: 7.8
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.19%
- Percentil entre todas las CVEs puntuadas: 8
- 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 escalation90 %
AV:L/PR:L sin UI indica escalada de privilegios local. OOB en descriptor UAC3 permite ejecución de código con permisos elevados del kernel, afectando a controlador USB-audio.
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 (2)
CWE
- CWE-787
Referencias
- https://git.kernel.org/stable/c/07c8d78dbb5e0ff8b23f7fd69cd1d4e2ba22b3dc
- https://git.kernel.org/stable/c/1666207ba0a5973735ef010812536adde6174e81
- https://git.kernel.org/stable/c/29b415ec09f5b9d1dfa2423b826725a8c8796b9a
- https://git.kernel.org/stable/c/40714daf4d0448e1692c78563faf0ed0f9d9b5c7
- https://git.kernel.org/stable/c/452ad54f432675982cc0d6eb6c40a6c86ac61dbd
- https://git.kernel.org/stable/c/cd08d390d15b204cac1d3174f5f149a20c52e61a
- https://git.kernel.org/stable/c/d832ccbc301fbd9e5a1d691bdcf461cdb514595f
- https://git.kernel.org/stable/c/ebc9e06b6ea978a20abf9b87d41afc51b2d745ac
- https://git.kernel.org/stable/c/f03418bb9d542f44df78eec2eff4ac83c0a8ac0d
- https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html
- https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html
- https://cert-portal.siemens.com/productcert/html/ssa-032379.html
JSON original (NVD)
Mostrar
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