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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` → `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.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade freerdp | Mar 2, 2026 | Feb 25, 2026 |
| Amazon_linux_2023 | — | Upgrade libwinpr-debuginfoUpgrade freerdpUpgrade libwinpr-develUpgrade freerdp-debuginfoUpgrade freerdp-debugsourceUpgrade libwinprUpgrade freerdp-libs-debuginfoUpgrade freerdp-libsUpgrade freerdp-server-debuginfoUpgrade freerdp-serverUpgrade freerdp-devel | Apr 7, 2026 | Feb 25, 2026 |
| Debian | — | Upgrade freerdp3 | Jul 23, 2026 | Jul 23, 2026 |
| Redhat_linux | — | No solution exists | Jul 17, 2026 | Feb 25, 2026 |
| Ubuntu | — | Upgrade libfreerdp3-3 | Mar 19, 2026 | Feb 25, 2026 |
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