Bug 2533933 (CVE-2026-91962)

Summary: CVE-2026-91962 FreeRDP: FreeRDP: Remote out-of-bounds access via integer overflow in audin Apple backends
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 integer overflow in the audin Apple backends, specifically when processing FramesPerPacket values from MSG_SNDIN_OPEN messages, allows a malicious RDP (Remote Desktop Protocol) server to supply crafted values. This can cause the AudioQueueAllocateBuffer size computation to wrap, leading to an undersized buffer allocation and potential out-of-bounds access. This memory safety issue could result in information disclosure, denial of service, or potentially arbitrary code execution.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
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Bug Depends On: 2534090, 2534092    
Bug Blocks:    

Description OSIDB Bzimport 2026-09-15 15:51:47 UTC
FreeRDP before 3.31.0 contains an integer overflow in the audin Apple backends when processing FramesPerPacket values from MSG_SNDIN_OPEN messages. Attackers can supply crafted FramesPerPacket values that cause AudioQueueAllocateBuffer size computation to wrap, resulting in undersized buffer allocation and potential out-of-bounds access.