FreeRDP has a heap-use-after-free in create_irp_thread_CVE-2026-22856

6.8 / 10

MEDIUM

CVSS: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:P

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.

Basic Information

ID CVE-2026-22856

Source GitHub_M

Published Jan 14, 2026 at 17:53

Affected Product

Vendor FreeRDP

Product FreeRDP

Version < 3.20.1

Affected Versions FreeRDP FreeRDP < 3.20.1

CWE Classification

CWE-362 CWE-416

References

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    "published": "2026-01-14T17:53:04.756Z",
    "modified": "2026-01-14T17:53:04.756Z",
    "type": "cve",
    "title": "FreeRDP has a heap-use-after-free in create_irp_thread",
    "source": "GitHub_M",
    "references": "https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-w842-c386-fxhv\nhttps://github.com/FreeRDP/FreeRDP/releases/tag/3.20.1",
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