CVE-2026-25942

MEDIUM5.5

FreeRDP has global-buffer-overflow in xf_rail_server_execute_result

Published Feb 25, 2026

Modified 1 weeks ago

Details

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0, xf_rail_server_execute_result indexes the global error_code_names[] array (7 elements, indices 0–6) with an unchecked execResult->execResult value received from the server, allowing an out-of-bounds read when the server sends an execResult value of 7 or greater. Version 3.23.0 fixes the issue.

References

WEB

https://github.com/FreeRDP/FreeRDP/blob/3370e30e92a021eb680892dda14d642bc8b8727c/channels/rail/client/rail_orders.c#L528

WEB

https://github.com/FreeRDP/FreeRDP/blob/3370e30e92a021eb680892dda14d642bc8b8727c/channels/rail/client/rail_orders.c#L75-L76

WEB

https://github.com/FreeRDP/FreeRDP/blob/3370e30e92a021eb680892dda14d642bc8b8727c/client/X11/xf_rail.c#L1014-L1017

WEB

https://github.com/FreeRDP/FreeRDP/blob/3370e30e92a021eb680892dda14d642bc8b8727c/client/X11/xf_rail.c#L40-L46

WEB

https://github.com/FreeRDP/FreeRDP/commit/9362a0bf8dda04eedbca07d5dfaec1044e67cc6b

WEB