Is CVE-2026-121391 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-121391?

CVE-2026-121391 has a CVSS v3 severity of MEDIUM (4.3).

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CVE-2026-121391

Description

FreeRDP from 3.0.0 before 3.32.2 contains a file descriptor leak in parallel_process_irp_create that fails to close previous descriptors on repeated IRP_MJ_CREATE requests. A hostile RDP server with parallel-device redirection enabled can send repeated CREATE requests to exhaust the client descriptor table and crash the process.