CVE-2026-109942

FreeRDP 2.3.0 before 3.32.0 NULL Pointer Dereference via RD Gateway Close Channel Packet

State: Published
Severity: 7.1 High
Published: Oct 13, 2026
Updated: Oct 16, 2026
Reserved: Oct 13, 2026

Description

FreeRDP 2.3.0 before 3.32.0 dereferences a NULL stream in rdg_process_close_packet in libfreerdp/core/gateway/rdg.c because rdg_process_control_packet accepts a header-only PKT_TYPE_CLOSE_CHANNEL packet and passes the null payload without a check. A malicious or compromised RD Gateway can send an eight-byte CLOSE_CHANNEL header to crash a connecting FreeRDP client.

Scores

CVSS	Score	Vector	Source
4.0	7.1 High	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N	VulnCheck
3.1	6.5 Medium	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H	VulnCheck

Weaknesses

CWE-476 NULL Pointer Dereference

Affected Products

Product	Versions
FreeRDPFreeRDP	2.3.0 to before 3.32.0Affected 3.32.0Not affected

References

GitHub Security Advisory (GHSA-f46f-pxh9-w2rh)vendor-advisory
VulnCheck Advisory: FreeRDP 2.3.0 before 3.32.0 NULL Pointer Dereference via RD Gateway Close Channel Packetthird-party-advisory

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