Use After Free Affecting freerdp-debuginfo package, versions <2:2.11.7-1.amzn2.0.4


Severity

Recommended
medium

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.29% (22nd percentile)

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  • Snyk IDSNYK-AMZN2-FREERDPDEBUGINFO-15323869
  • published20 Feb 2026
  • disclosed14 Jan 2026

Introduced: 14 Jan 2026

CVE-2026-22856  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2 freerdp-debuginfo to version 2:2.11.7-1.amzn2.0.4 or higher.
This issue was patched in ALAS2-2026-3166.

NVD Description

Note: Versions mentioned in the description apply only to the upstream freerdp-debuginfo package and not the freerdp-debuginfo package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2 relevant fixed versions and status.

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.20.1, a race in the serial channel IRP thread tracking allows a heap use‑after‑free when one thread removes an entry from serial->IrpThreads while another reads it. This vulnerability is fixed in 3.20.1.

CVSS Base Scores

version 3.1