CVE-2026-44422 FreeRDP RDPEAR NDR ref-id aliasing causes client-side UAF/double-free and type confusion

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...

CVE-2026-44422

CVE-2026-44422 affects FreeRDP prior to 3.26.0. The RDPEAR NDR parser incorrectly reused a non-null NDR pointer ref-id across multiple logical pointer fields, causing the same heap object to be assigned to two outputs. The destructor then frees both pointers, enabling a heap use-after-free / doub...