Out-of-bounds Read Affecting libwinpr package, versions <2:2.11.7-1.amzn2.0.4


Severity

Recommended
medium

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.09% (25th percentile)

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  • Snyk IDSNYK-AMZN2-LIBWINPR-15323856
  • published20 Feb 2026
  • disclosed14 Jan 2026

Introduced: 14 Jan 2026

CVE-2026-22855  (opens in a new tab)
CWE-125  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2 libwinpr 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 libwinpr package and not the libwinpr 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 heap out-of-bounds read occurs in the smartcard SetAttrib path when cbAttrLen does not match the actual NDR buffer length. This vulnerability is fixed in 3.20.1.

CVSS Base Scores

version 3.1