PT-2026-110665

CVE-2026-109248

Published

2026-10-12

Updated

2026-10-13

Description by

CVSS 4.0

6.9

Medium

MetricsAV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Name of the Vulnerable Software and Affected Versions FreeRDP versions 3.0.0 through 3.31.0

Description A heap out-of-bounds read exists in the WinPR clipboard function convert filedescriptors to file list(). The issue occurs when the function scans a server-controlled FILEDESCRIPTORW cFileName using unbounded wcschr() and count special chars() calls without a guarantee of NUL-termination. A malicious RDP server can trigger this by sending an odd-length FILEDESCRIPTORW blob in a CB FORMAT DATA RESPONSE, which can lead to the crashing of X11, Wayland, and SDL clients when a user attempts to paste files copied from the server.

Recommendations Update FreeRDP to version 3.32.0 or later.

Exploitability

Exploit

Fix

Impacts

Researchers

Davidkorczynski

Vendors

Affected products

Weakness enumeration

CWE-125: Out-of-bounds Read

Related identifiers