CVE-2026-25997 – FreeRDP has heap-use-after-free in xf_clipboard_format_equal

CVE ID : CVE-2026-25997

Published : Feb. 25, 2026, 8:38 p.m. | 30 minutes ago

Description : FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0, `xf_clipboard_format_equal` reads freed `lastSentFormats` memory because `xf_clipboard_formats_free` (called from the cliprdr channel thread during auto-reconnect) frees the array while the X11 event thread concurrently iterates it in `xf_clipboard_changed`, triggering a heap use after free. Version 3.23.0 fixes the issue.

Severity: 0.0 | NA

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