CVE-2026-25959

UNKNOWN 0.0

FreeRDP has heap-use-after-free in xf_cliprdr_provide_data_

CVSS Score

0.0

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-416
Vendor	freerdp
Product	freerdp
Published	Feb 25, 2026
Last Updated	Feb 26, 2026

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Affected Versions

FreeRDP / FreeRDP

< 3.23.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗