CVE-2026-121398

FreeRDP before 3.32.2 contains a cross-thread use-after-free vulnerability in the freerdp-proxy dyn-channel-dump module during session teardown. A malicious RDP target can send dynamic channel data while the front client disconnects, letting the client thread read freed ChannelData and crash the proxy process.

CVSS v3 5.9 MEDIUM

5.9^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.2 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-v3q2-qjvf-7rqw	Vendor Advisory
https://www.vulncheck.com/advisories/freerdp-before-3.32.2-use-after-free-via-dyn-channel-dump-module	Third Party Advisory

Configurations

Configuration 1 (hide)

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

History

03 Nov 2026, 16:11

Type	Values Removed	Values Added
First Time		Freerdp Freerdp freerdp
References	~~() https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-v3q2-qjvf-7rqw -~~	() https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-v3q2-qjvf-7rqw - Vendor Advisory
References	~~() https://www.vulncheck.com/advisories/freerdp-before-3.32.2-use-after-free-via-dyn-channel-dump-module -~~	() https://www.vulncheck.com/advisories/freerdp-before-3.32.2-use-after-free-via-dyn-channel-dump-module - Third Party Advisory
CPE		cpe:2.3:a:freerdp:freerdp::::::::

03 Nov 2026, 15:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-11-03 15:17

Updated : 2026-11-03 16:11

NVD link : CVE-2026-121398

Mitre link : CVE-2026-121398

CVE.ORG link : CVE-2026-121398

JSON object : View

Products Affected

freerdp

freerdp

CWE

CWE-416

Use After Free

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