FreeRDP before 3.32.2 contains a denial of service vulnerability in the shadow server's remdesk_server_thread that allows authenticated clients to crash the process via an inverted PDU length check. Attackers can send an 8192-byte remdesk payload declaring an eight-byte PDU length to trigger a fatal Stream_Seek assertion, aborting the server and dropping sessions.
Advisories

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Fixes

Solution

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Workaround

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History

Tue, 03 Nov 2026 14:45:00 +0000

Type Values Removed Values Added
Description FreeRDP before 3.32.2 contains a denial of service vulnerability in the shadow server's remdesk_server_thread that allows authenticated clients to crash the process via an inverted PDU length check. Attackers can send an 8192-byte remdesk payload declaring an eight-byte PDU length to trigger a fatal Stream_Seek assertion, aborting the server and dropping sessions.
Title FreeRDP before 3.32.2 Shadow Server Denial of Service via remdesk Channel
First Time appeared Freerdp
Freerdp freerdp
Weaknesses CWE-20
CPEs cpe:2.3:a:freerdp:freerdp:*:*:*:*:*:*:*:*
Vendors & Products Freerdp
Freerdp freerdp
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}

cvssV4_0

{'score': 7.1, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-11-03T14:28:08.104Z

Reserved: 2026-11-03T12:28:46.507Z

Link: CVE-2026-121407

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Analyzed

Published: 2026-11-03T15:17:29.420

Modified: 2026-11-03T15:59:17.710

Link: CVE-2026-121407

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-11-03T16:45:14Z

Weaknesses