Riskcovery

CVE-2026-22856

FreeRDP has a heap-use-after-free in create_irp_thread

State
Published
Severity
6.8 Medium
Published
Jan 14, 2026
Updated
Feb 26, 2026
Reserved
Jan 12, 2026

Read the record on cve.org

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.

Scores

CVSSScoreVectorSource
4.06.8 MediumCVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:PGitHub_M

Weaknesses

  • CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
  • CWE-416 Use After Free

Affected Products

ProductVersions
FreeRDPFreeRDP
  • < 3.20.1Affected

References

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