MEDIUM 5.3 NVD
CVE-2026-121406
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
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.
Affected Products
- freerdp/freerdp
References
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-2c9x-4gr7-hrwx
- https://www.vulncheck.com/advisories/freerdp-before-3.32.2-client-denial-of-service-via-ze
This medium severity vulnerability with a CVSS score of 5.3 was published on 2026-11-03 via NVD. Affected: freerdp/freerdp.
vulnfeed aggregates 18261 vulnerabilities from NVD, CISA KEV,
Ubuntu, Debian, Red Hat, Kubernetes, Exploit-DB, OSS-Security, GitHub and OpenStack — updated every 4 hours.