Bug 2549790 (CVE-2026-109242) - CVE-2026-109242 freerdp: FreeRDP: Denial of Service via uninitialized progressive tile handling
Summary: CVE-2026-109242 freerdp: FreeRDP: Denial of Service via uninitialized progres...
Keywords:
Status: NEW
Alias: CVE-2026-109242
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-10-12 16:50 UTC by OSIDB Bzimport
Modified: 2026-10-13 10:39 UTC (History)
2 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
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Description OSIDB Bzimport 2026-10-12 16:50:49 UTC 
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 WBT_TILE_FIRST then WBT_TILE_UPGRADE sequence to paint heap bytes onscreen or abort the client process.
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