CVE-2026-25954
High
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.
SeverityHigh
CVSS7.5
Exploit probability—
ProductFreerdp
PublishedFeb 25, 2026
First seenFeb 25, 2026
Weakness typeCWE-416Use after free
How to fix
Update
- freerdp freerdp3.23.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| freerdp freerdp | v < 3.23.0 | 3.23.0 |
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