Expired Pointer Dereference Affecting freerdp package, versions <2:3.6.3-1.amzn2023.0.7


Severity

Recommended
high

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.15% (36th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-AMZN2023-FREERDP-15921751
  • published7 Apr 2026
  • disclosed25 Feb 2026

Introduced: 25 Feb 2026

CVE-2026-25959  (opens in a new tab)
CWE-825  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2023 freerdp to version 2:3.6.3-1.amzn2023.0.7 or higher.
This issue was patched in ALAS2023-2026-1512.

NVD Description

Note: Versions mentioned in the description apply only to the upstream freerdp package and not the freerdp package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2023 relevant fixed versions and status.

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_dataHashTable_Clear which frees the same data via xf_cached_data_free, triggering a heap use after free. Version 3.23.0 fixes the issue.

CVSS Base Scores

version 3.1