Home

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.

PUBLISHED Reserved 2026-02-09 | Published 2026-02-25 | Updated 2026-02-25 | Assigner GitHub_M




MEDIUM: 5.5CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P

Problem types

CWE-416: Use After Free

Product status

< 3.23.0
affected

References

github.com/...reeRDP/security/advisories/GHSA-q5j3-m6jf-3jq4 exploit

github.com/...reeRDP/security/advisories/GHSA-q5j3-m6jf-3jq4

github.com/...ommit/58409406afe7c2a8a71ed2dc8e22075be4f41c0c

github.com/...806c2a5c583ca39dd9ef1e/client/X11/xf_cliprdr.c

github.com/...806c2a5c583ca39dd9ef1e/client/X11/xf_cliprdr.c

github.com/...806c2a5c583ca39dd9ef1e/client/X11/xf_cliprdr.c

github.com/...806c2a5c583ca39dd9ef1e/client/X11/xf_cliprdr.c

github.com/...806c2a5c583ca39dd9ef1e/client/X11/xf_cliprdr.c

github.com/...806c2a5c583ca39dd9ef1e/client/X11/xf_cliprdr.c

github.com/...806c2a5c583ca39dd9ef1e/client/X11/xf_cliprdr.c

cve.org (CVE-2026-25997)

nvd.nist.gov (CVE-2026-25997)

Download JSON