CVE-2026-22856

Public on 2026-01-14
Modified on 2026-01-16
Description
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.
Severity
Medium severity
Medium
See what this means
CVSS v3 Base Score
5.0
See breakdown

Affected Packages

Platform Package Release Date Advisory Status
Amazon Linux 2 - Core freerdp Pending Fix
Amazon Linux 2023 freerdp Pending Fix

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 5.0 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L

References

FAQs regarding Amazon Linux ALAS/CVE Severity Red Hat: CVE-2026-22856 Mitre: CVE-2026-22856