Use After Free Affecting freerdp3 package, versions <3.23.0+dfsg-1


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
0.49% (38th percentile)

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  • Snyk IDSNYK-DEBIANUNSTABLE-FREERDP3-15352314
  • published26 Feb 2026
  • disclosed25 Feb 2026

Introduced: 25 Feb 2026

CVE-2026-25954  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade Debian:unstable freerdp3 to version 3.23.0+dfsg-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream freerdp3 package and not the freerdp3 package as distributed by Debian. See How to fix? for Debian:unstable relevant fixed versions and status.

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0, xf_rail_server_local_move_size dereferences a freed xfAppWindow pointer because xf_rail_get_window returns an unprotected pointer from the railWindows hash table, and the main thread can concurrently delete the window (via a window delete order) while the RAIL channel thread is still using the pointer. Version 3.23.0 fixes the issue.

CVSS Base Scores

version 3.1