CVE-2026-93834
Gravedad CVSS v3.1:
ALTA
Tipo:
CWE-416
Utilización después de liberación
Fecha de publicación:
25/09/2026
Última modificación:
29/09/2026
Descripción
*** Pendiente de traducción *** A use-after-free vulnerability was found in QEMU's 9pfs subsystem. A race condition between the main thread and a worker thread when processing concurrent Tlcreate and Twalk requests allows a malicious guest user to craft a fid path containing stale heap data, bypassing directory traversal restrictions and escaping the shared directory boundary. This can lead to arbitrary host file read/write and code execution (VM escape) as the QEMU process user.
Impacto
Puntuación base 3.x
8.80
Gravedad 3.x
ALTA


