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

CVE-2026-121395

Description

FreeRDP from 3.17.0 before 3.32.2 contains an assertion failure in the RemoteFX differential decoder when verbose WinPR assertions are enabled. A malicious RDP server can send a crafted RemoteFX tile with adjacent LL3 coefficients summing beyond signed 16-bit range to abort the client process.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Freerdp/Freerdpllm-fuzzy
Range: 3.17.0 <= x < 3.32.2

Patches

Vulnerability mechanics

References

github.com/FreeRDP/FreeRDP/security/advisories/GHSA-cg4f-57hc-v7w7nvd
www.vulncheck.com/advisories/freerdp-3.17.0-before-3.32.2-denial-of-service-via-remotefx-decodernvd

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