VDB

DEBIAN-CVE-2026-25959

DEBIAN-CVE-2026-25959 PUBLISHED CVSS 9.800000190734863 CRITICAL

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.

Risk Scores

CVSS 3.1
9.800000190734863
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Products

VendorProductVersions
Debian:11freerdp22.11.7+dfsg1, 2.9.0+dfsg1, 2.9.0+dfsg1
Debian:12freerdp22.11.7+dfsg1, 2.11.7+dfsg1, 2.11.7+dfsg1
Debian:13freerdp33.15.0+dfsg, 0, 3.15.0+dfsg-2.1
Debianfreerdp2
Debian:14freerdp33.20.0+dfsg-1, 3.19.0+dfsg-1, 3.17.2+dfsg-3

Timeline

  • Feb 25, 2026 CVE Published
  • May 16, 2026 CVE Updated
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