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FreeRDP freerdpFreeRDP before 3.0.0 and 3.6.0 before 3.32.0 Uninitialized Heap Disclosure via Progressive Codec Tile Upgrade

Risk 53
Severity
7.1
AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H

FreeRDP before 3.0.0 and 3.6.0 before 3.32.0 renders uninitialized heap memory from un-decoded progressive tiles because the tile->current buffer is allocated without zeroing. A malicious RDP server can send a crafted WBTTILEFIRST then WBTTILEUPGRADE sequence to paint heap bytes onscreen or abort the client process.

First published (updated )
CVE-2026-109242

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SecAlerts Pty Ltd.
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QLD 4006, Australia
info@secalerts.co
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