Bug 2438216 (CVE-2026-24683)

Summary: CVE-2026-24683 freerdp: FreeRDP has a heap-use-after-free in ainput_send_input_event
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: unspecifiedKeywords: Security
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Hardware: All   
OS: Linux   
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A heap buffer use after free has been discovered in FreeRDP. ainput_send_input_event caches channel_callback in a local variable and later uses it without synchronization; a concurrent channel close can free or reinitialize the callback, leading to a use after free.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Depends On: 2438251, 2438303, 2438310, 2438262, 2438307    
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Description OSIDB Bzimport 2026-02-09 20:02:28 UTC
FreeRDP is a free implementation of the Remote Desktop Protocol. ainput_send_input_event caches channel_callback in a local variable and later uses it without synchronization; a concurrent channel close can free or reinitialize the callback, leading to a use after free. Prior to 3.22.0, This vulnerability is fixed in 3.22.0.