๐Ÿ›ก๏ธ CVE-2026-25959
๐Ÿ”ด CVSS 9.8 โ€” Critical โš ๏ธ Exploit Public CWE-416 NVD
9.8
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0, `xf_cliprdr_provide_data_` passes freed `pDstData` to `XChangeProperty` because the cliprdr channel thread calls `xf_cliprdr_server_format_data_response` which converts and uses the clipboard data without holding any lock, while the X11 event thread concurrently calls `xf_cliprdr_clear_cached_data` โ†’ `HashTable_Clear` which frees the same data via `xf_cached_data_free`, triggering a heap use after free. Version 3.23.0 fixes the issue.

Details

Severity CRITICAL
CVSS Score 9.8
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE CWE-416
Public Exploit โš ๏ธ Yes
Source NVD
Published 2026-02-25
Updated 2026-06-02
Modified 2026-02-27

Affected Packages

Software From version Fixed in
freerdp โ€” 3.23.0

References

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