Heap-based Buffer Overflow Affecting libwinpr package, versions <2:3.10.3-12.el10_2.6


Severity

Recommended
high

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.86% (57th percentile)

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  • Snyk IDSNYK-ORACLE10-LIBWINPR-18135577
  • published21 Jul 2026
  • disclosed29 May 2026

Introduced: 29 May 2026

CVE-2026-44420  (opens in a new tab)
CWE-122  (opens in a new tab)

How to fix?

Upgrade Oracle:10 libwinpr to version 2:3.10.3-12.el10_2.6 or higher.
This issue was patched in ELSA-2026-36203.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libwinpr package and not the libwinpr package as distributed by Oracle. See How to fix? for Oracle:10 relevant fixed versions and status.

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.26.0, a malicious RDP client can trigger a heap-buffer-overflow write in FreeRDP's server-side clipboard (cliprdr) channel by sending a CB_CLIP_CAPS PDU with a too-small capabilitySetLength. This can crash the server process (remote DoS) and may be exploitable for code execution because it corrupts heap memory. This vulnerability is fixed in 3.26.0.

CVSS Base Scores

version 3.1