CVE-2026-121399

CVE-2026-121399CVE-2026-121399

freerdp / freerdp

Description

FreeRDP before 3.32.2 contains a memory allocation vulnerability in rdg_receive_packet that allows a malicious RD Gateway to force a 2 GiB client allocation before tunnel authentication. Attackers can send an eight-byte RDG header declaring packet length 0x7FFFFFFF to trigger pre-authentication memory exhaustion and denial of service.

Scoring

CVSS 4.3 ()
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
Last modified2026-11-03
Sourced from NVD. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.