[CVE-2026-56297] FreeRDP before 3.22.0 contains a use-after-free vulnerability in dvcman_channel_close and dvcman_cal…

Descripción técnica

FreeRDP before 3.22.0 contains a use-after-free vulnerability in dvcman_channel_close and dvcman_call_on_receive due to improper synchronization of channel_callback access. A malicious RDP server can trigger a race condition by sending DYNVC_DATA and DYNVC_CLOSE messages concurrently, causing heap-use-after-free in the drdynvc client thread and potentially enabling remote code execution or denial of service.

Puntuación CVSS

Score: 7/10 — Severidad: HIGH — Estado NIST: Analyzed

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H

Productos afectados

Freerdp — Freerdp

Debilidades (CWE)

CWE-362

Fuente oficial

Publicado en NIST NVD.