[ CVE-2026-121394 · Published 3 Nov 2026 ]

Vulnerability in FreeRDP

CVSS 6.5 EPSS <1%1 agency advisoryNo fix listed yet

[ Description ]Official description

FreeRDP from 3.11.0 before 3.32.2 contains an assertion failure in the RemoteFX RLGR decoder that allows malicious servers to terminate clients. Attackers controlling an RDP server can send a RemoteFX tileset with RLGR code 32767, triggering a signed narrowing assertion in rfx_rlgr_decode and crashing the client.

[ Fixes ]Fixes and patches

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ Advisories ]Government CERT advisories

BSI CERT-Bund19 Oct 2026WID-SEC-2026-4039

FreeRDP: Multiple vulnerabilities Translated from German
Risk mediumCVE-2026-121412CVE-2026-121407CVE-2026-121400+20 more CVEs

[ References ]References

github.com/FreeRDP/FreeRDP/security/advisories/GHSA-5j39-x36c-x9pmVendor Advisory
www.vulncheck.com/advisories/freerdp-before-3.32.2-denial-of-service-via-remotefx-rlgr-…Third Party Advisory

[ Description ]Official description

[ Fixes ]Fixes and patches

[ Advisories ]Government CERT advisories

FreeRDP: Multiple vulnerabilities Translated from German

[ References ]References