Access of Uninitialized Pointer Affecting libwinpr-devel package, versions <2:3.31.0-1.amzn2023


Severity

Recommended
0.0
high
0
10

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.67% (50th percentile)

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  • Snyk IDSNYK-AMZN2023-LIBWINPRDEVEL-20245200
  • published29 Sept 2026
  • disclosed15 Sept 2026

Introduced: 15 Sep 2026

CVE-2026-91963  (opens in a new tab)
CWE-824  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2023 libwinpr-devel to version 2:3.31.0-1.amzn2023 or higher.
This issue was patched in ALAS2023-2026-2142.

NVD Description

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

FreeRDP versions before 3.31.0 contain an uninitialized heap memory disclosure vulnerability in the urbdrc USB redirection channel. A malicious RDP server can induce failing USB transfers to read uninitialized heap memory from the client, defeating ASLR and enabling remote code execution when chained with memory corruption vulnerabilities.

CVSS Base Scores

version 3.1