CVE-2026-22857

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

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

Description

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.20.1, a heap use-after-free occurs in irp_thread_func because the IRP is freed by irp->Complete() and then accessed again on the error path. This vulnerability is fixed in 3.20.1.

Scores

CVSS	Score	Vector	Source
4.0	6.8 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	GitHub_M

Weaknesses

CWE-416 Use After Free

Affected Products

Product	Versions
FreeRDPFreeRDP	< 3.20.1Affected

References

https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-4gxq-jhq6-4cr8
https://github.com/FreeRDP/FreeRDP/releases/tag/3.20.1

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