Bug 2553910 (CVE-2026-111376)

Summary: CVE-2026-111376 freerdp: freerdp: Denial of Service via short clipboard response
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. When handling remote file clipboard transfers on Windows clients, the application fails to properly validate the length of file size responses returned by a Remote Desktop Protocol (RDP) server. A malicious RDP server can exploit this by returning an abnormally short response when a user pastes a remote file, triggering an out-of-bounds memory read. This can cause the client application to terminate unexpectedly, resulting in a Denial of Service (DoS).
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description OSIDB Bzimport 2026-10-16 01:41:34 UTC
FreeRDP from 3.30.0 before 3.32.0 contains a heap out-of-bounds read vulnerability in the Windows client's CliprdrStream_New that allows malicious RDP servers to trigger invalid memory reads via short clipboard responses. Attackers can answer a FILECONTENTS_SIZE request with a cbRequested of fewer than eight bytes when a user pastes a remote file, crashing the client or corrupting the stream size.