CVE-2026-40254

MEDIUM

4.2

Descricao

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.

Detalhes CVE

Pontuacao CVSS v3.14.2

SeveridadeMEDIUM

Vetor CVSSCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N

Vetor de ataqueNETWORK

ComplexidadeHIGH

Privilegios necessariosNONE

Interacao do usuarioREQUIRED

Publicado4/24/2026

Ultima modificacao4/24/2026

Fontenvd

Avistamentos honeypot0

Fraquezas (CWE)

CWE-193

Referencias

https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-3xpj-m4hx-8vmx(security-advisories@github.com)

https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-3xpj-m4hx-8vmx(134c704f-9b21-4f2e-91b3-4a467353bcc0)

Correlacoes IOC

Sem correlacoes registradas

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