CVE-2026-121400
MEDIUM
freerdp
NVD
CVSS Score
6.5
Severity
MEDIUM
Published
Nov 03, 2026
Vendor
freerdp
Description
FreeRDP before 3.32.2 contains a denial-of-service vulnerability in rdg_process_control_packet that allows a malicious RD Gateway to exhaust client CPU by sending an incomplete keepalive control packet. Attackers completing the RDG tunnel-open exchange then send an eight-byte header with packetLength 0xFFFF and withhold the body, causing an unbounded no-progress read loop that spins one client thread at full CPU.