Bug 2552983 (CVE-2026-110832)

Summary: CVE-2026-110832 freerdp: freerdp: Denial of Service via memory exhaustion in dynamic virtual channels
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 client can trigger excessive memory consumption on the server by sending a crafted Dynamic Virtual Channel (DVC) message with an arbitrarily large declared length. Because the server immediately allocates and initializes the requested memory before the full payload is received, an attacker can exhaust system resources and cause 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 2026-10-14 23:03:28 UTC
FreeRDP from 2.0.0 before 3.32.0 contains a memory exhaustion vulnerability in wts_read_drdynvc_data_first that allows authenticated clients to force servers to commit large memory allocations. Attackers can send a seven-byte DATA_FIRST message on an opened DVC declaring a large 32-bit length, causing zeroed resident memory growth and server resource exhaustion.