Unrated severityOSV Advisory· Published Jan 14, 2026· Updated Feb 26, 2026
FreeRDP has a heap-use-after-free in create_irp_thread
CVE-2026-22856
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.
Affected products
1Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
2- github.com/FreeRDP/FreeRDP/releases/tag/3.20.1mitrex_refsource_MISC
- github.com/FreeRDP/FreeRDP/security/advisories/GHSA-w842-c386-fxhvmitrex_refsource_CONFIRM
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