CVE-2026-44422

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.26.0, FreeRDP's RDPEAR NDR parser accepts one non-null NDR pointer ref-id for multiple logical pointer fields without tracking the pointed object's expected NDR type or ownership. When the same ref-id is reused across two pointer fields, the parser assigns the same heap object to both output fields. The generic destructor later walks each field independently and destroys/frees both pointers. This causes a malicious-server-triggerable heap use-after-free / double-free in the FreeRDP client's RDPEAR authentication-redirection path. This vulnerability is fixed in 3.26.0.

Affected products

Freerdp, Red Os

Freerdp

< 3.26.0

Fix

Available

CVSS 3.1

8.8 HIGH

EPSS

0.4% (35th percentile)

Weakness

CWE-415, CWE-825, CWE-416

NVD status

Modified

Published

2026-05-29

No exploit for CVE-2026-44422 has been indexed yet. Our index is built from live traffic and upstream syncs, so this page can only say what it knows — not that no exploit exists.