HIGH 7.1 NVD
CVE-2026-121404
FreeRDP before 3.32.2 contains a denial of service vulnerability in the shadow server that allows authenticated RDP clients to spin server threads by sending ze
FreeRDP before 3.32.2 contains a denial of service vulnerability in the shadow server that allows authenticated RDP clients to spin server threads by sending zero-length drdynvc DATA PDUs. Attackers can send empty DATA messages on opened audin or rdpgfx channels, so that FreeRDP_WTSVirtualChannelRead never consumes them, consuming full CPU cores until disconnect.
Affected Products
- freerdp/freerdp
References
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-fqcj-rwww-2498
- https://www.vulncheck.com/advisories/freerdp-before-3.32.2-shadow-server-cpu-exhaustion-vi
This high severity vulnerability with a CVSS score of 7.1 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.