Bug 2549730 (CVE-2026-109254)

Summary: CVE-2026-109254 freerdp: freerdp: Denial of Service via use-after-free during audio channel disconnect
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. A use-after-free vulnerability allows a malicious Remote Desktop Protocol (RDP) server to cause a Denial of Service (DoS) by crashing the client. During static audio channel disconnection, audio data structures are released before the background playback thread finishes processing queued audio. By disconnecting during asynchronous audio playback, a malicious server forces the client to access freed memory, causing the application to terminate unexpectedly.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description OSIDB Bzimport 2026-10-12 16:36:01 UTC
FreeRDP 2.1.0 before 3.32.0 contains a use-after-free vulnerability in the static rdpsnd channel disconnect path, which frees audio formats and device without joining play_thread. A malicious RDP server can disconnect while asynchronous Wave2 playback processes queued PDUs, causing the client to read freed heap memory and crash.