CVE-2026-40254mediumCWE-193

CVE-2026-40254: fallo de gravedad media en FreeRDP

FreeRDP: contains_dotdot() off-by-one allows drive channel path traversal via terminal ..

Publicada el

Seguir esta CVE+ Monitorear FreeRDP+ Monitorear freerdp2

Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.

13Vexday Risk Score

Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.

ssvc Trackcvss 4.2epss 0.2%
FreeRDP is a free implementation of the Remote Desktop Protocol. Versions prior to 3.25.0 have an off-by-one in the path traversal filter in `channels/drive/client/drive_file.c`. The `contains_dotdot()` function catches `../` and `..\` mid-path but misses `..` when it's the last component with no trailing separator. A rogue RDP server can read, list, or write files one directory above the client's shared folder through RDPDR requests. This requires the victim to connect with drive redirection enabled. Version 3.25.0 patches the issue.
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N
Productos afectados
FreeRDP · FreeRDP
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