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
0.16% (37th percentile)

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  • Snyk IDSNYK-AMZN2023-FREERDP-15921945
  • published7 Apr 2026
  • disclosed25 Feb 2026

Introduced: 25 Feb 2026

CVE-2026-25997  (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_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.

CVSS Base Scores

version 3.1