Bug 2550529 (CVE-2026-109950)

Summary: CVE-2026-109950 freerdp: FreeRDP 3.0.0 before 3.32.0 Heap Out-of-Bounds Read via RD Gateway Messages
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: rhel-process-autobot, watson-tool-maintainers
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in FreeRDP. This vulnerability allows a malicious or compromised Remote Desktop (RD) Gateway to cause a Denial of Service (DoS) by crashing connecting client applications. By transmitting consent or service messages with mismatched length indicators, the gateway triggers an out-of-bounds read during character conversion, causing the client to terminate abnormally.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
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Bug Depends On: 2562602    
Bug Blocks:    

Description OSIDB Bzimport 2026-10-13 13:55:55 UTC
FreeRDP from 3.0.0 before 3.32.0 contains a heap out-of-bounds read vulnerability that allows a malicious RD Gateway to crash clients by sending mismatched message lengths. Attackers controlling the gateway can set MsgBytes far larger than the NDR string ActualCount in consent or service messages, causing UTF-8 conversion to read past the stream allocation and disrupt client availability.