Bug 2550502 (CVE-2026-109943) - CVE-2026-109943 freerdp: FreeRDP 3.29.0 before 3.32.0 Double Free via Async-Update Polygon Order
Summary: CVE-2026-109943 freerdp: FreeRDP 3.29.0 before 3.32.0 Double Free via Async-U...
Keywords:
Status: NEW
Alias: CVE-2026-109943
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On: 2560922
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-10-13 13:45 UTC by OSIDB Bzimport
Modified: 2026-10-26 16:31 UTC (History)
2 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
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Description OSIDB Bzimport 2026-10-13 13:45:18 UTC 
FreeRDP 3.29.0 before 3.32.0 contains a double free in the client's async-update message proxy, which shallow-copies the parser-owned PolygonSC or PolygonCB points array when numPoints is zero, so both the queue consumer and parser cleanup free it. A malicious RDP server can send a point-bearing polygon order followed by a zero-point order to crash a client with +async-update enabled.
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