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Findings

CVE-2026-40254

FreeRDP is a free implementation of the Remote Desktop Protocol.

Published Apr 24, 2026 · updated Jun 17, 2026 · freerdp freerdp

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 . The 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.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Apr 24, 2026 · NIST NVD

    Detected

    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 . The 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 connec

  2. Jun 17, 2026 · NIST NVD

    Updated

    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 . The 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 connec

Affected

  • cpe freerdp/freerdpversion unspecified

Sources

  • CVE.orgVulnerability recordCVE-2026-40254

    Official CVE identifier

    cve.org
  • NIST NVDVulnerability recordCVE-2026-40254

    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 . The function catches and mid-path but misses when it's the last

    nvd.nist.gov

References