Medium severity6.5NVD Advisory· Published Nov 3, 2026· Updated Nov 3, 2026

CVE-2026-121394

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.

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Affected products

Freerdp/Freerdpllm-fuzzy
Range: <3.32.2

Patches

Vulnerability mechanics

References

github.com/FreeRDP/FreeRDP/security/advisories/GHSA-5j39-x36c-x9pmnvd
www.vulncheck.com/advisories/freerdp-before-3.32.2-denial-of-service-via-remotefx-rlgr-decodernvd

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cvss	0.423
epss	0.000
exploit	0.000
kev	0.000
patch	-0.070
ransomware	0.000