Bug 2553915 (CVE-2026-111377)

Summary: CVE-2026-111377 freerdp: FreeRDP: Denial of Service via unbounded static channel reassembly
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. An authenticated remote attacker can cause a Denial of Service (DoS) by initiating a message on a static virtual channel and repeatedly sending data fragments without completing the transmission. Because the server fails to enforce cumulative size limits during message reassembly, it continuously retains memory for the incomplete stream, potentially exhausting system memory and causing the server to crash.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
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Description OSIDB Bzimport 2026-10-16 01:41:48 UTC
FreeRDP from 2.0.0 before 3.32.0 contains an unbounded reassembly vulnerability in WTSProcessChannelData that fails to enforce cumulative fragment limits. Authenticated clients can start a static virtual channel message, withhold the LAST flag, and send endless fragments to exhaust server memory.