CVE-2026-25954

HIGH

FreeRDP < 3.23.0 - Use-After-Free in xf_rail_server_local_move_size

Title source: llm
STIX 2.1

Description

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0, `xf_rail_server_local_move_size` dereferences a freed `xfAppWindow` pointer because `xf_rail_get_window` returns an unprotected pointer from the `railWindows` hash table, and the main thread can concurrently delete the window (via a window delete order) while the RAIL channel thread is still using the pointer. Version 3.23.0 fixes the issue.

References (8)

Core 8
Core References

Scores

CVSS v3 7.5
EPSS 0.0049
EPSS Percentile 37.9%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable yes
Technical Impact partial

Details

CWE
CWE-416
Status published
Products (1)
freerdp/freerdp < 3.23.0
Published Feb 25, 2026
Tracked Since Feb 26, 2026