CVE-2026-121406

MediumCVSS 4.3/10Last modified Nov 7, 2026

Description

FreeRDP before 3.32.2 allows a client assertion abort because rdpgfx_on_data_received rejects only negative zgfx_decompress status and passes the resulting null output pointer to Stream_StaticConstInit. A malicious RDP server can send a zero-output ZGFX payload on the RDPGFX channel after session activation to terminate the client.

Metrics

CVSS 3.1 4.3/10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L

Weakness enumeration

CWE-617

Affected software

No affected versions have been published.

Timeline

Published: Nov 3, 2026
Last modified: Nov 7, 2026
NVD status: Modified

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