Bug 2553908 (CVE-2026-111373)

Summary: CVE-2026-111373 freerdp: FreeRDP: Denial of Service via zero-length WebSocket ping
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 malicious gateway or remote server can trigger a Denial of Service (DoS) by sending a zero-length WebSocket ping message to a connected client. When processing this empty payload, the application encounters an invalid null memory reference, triggering an assertion failure that terminates the client process.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description OSIDB Bzimport 2026-10-16 01:41:27 UTC 
FreeRDP before 3.32.0 contains a NULL pointer dereference vulnerability in the websocket transport that allows a malicious gateway to crash clients by sending zero-length pings. When the payload length is zero, websocket_reply_pong passes a nullptr stream to websocket_reply_close, triggering an assertion failure that terminates the client process and causes denial of service.