CVE-2026-109942

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.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-f46f-pxh9-w2rh	Exploit Vendor Advisory
https://www.vulncheck.com/advisories/freerdp-2.3.0-before-3.32.0-null-pointer-dereference-via-rd-gateway-close-channel-packet	Third Party Advisory
https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-f46f-pxh9-w2rh	Exploit Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:freerdp:freerdp:*:*:*:*:*:*:*:*

History

26 Oct 2026, 20:20

Type	Values Removed	Values Added
First Time		Freerdp Freerdp freerdp
CPE		cpe:2.3:a:freerdp:freerdp::::::::
References	~~() https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-f46f-pxh9-w2rh -~~	() https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-f46f-pxh9-w2rh - Exploit, Vendor Advisory
References	~~() https://www.vulncheck.com/advisories/freerdp-2.3.0-before-3.32.0-null-pointer-dereference-via-rd-gateway-close-channel-packet -~~	() https://www.vulncheck.com/advisories/freerdp-2.3.0-before-3.32.0-null-pointer-dereference-via-rd-gateway-close-channel-packet - Third Party Advisory

16 Oct 2026, 22:17

Type	Values Removed	Values Added
References	~~() https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-f46f-pxh9-w2rh -~~	() https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-f46f-pxh9-w2rh -

13 Oct 2026, 14:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-13 14:17

Updated : 2026-10-26 20:20

NVD link : CVE-2026-109942

Mitre link : CVE-2026-109942

CVE.ORG link : CVE-2026-109942

JSON object : View

Products Affected

freerdp

freerdp

CWE

CWE-476

NULL Pointer Dereference

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