Bug 2565886 (CVE-2026-121393) - CVE-2026-121393 freerdp: freerdp: Denial of Service via crafted RemoteFX region coordinates
Summary: CVE-2026-121393 freerdp: freerdp: Denial of Service via crafted RemoteFX regi...
Keywords:
Status: NEW
Alias: CVE-2026-121393
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:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-11-03 15:32 UTC by OSIDB Bzimport
Modified: 2026-11-03 16:18 UTC (History)
2 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

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Description OSIDB Bzimport 2026-11-03 15:32:35 UTC 
FreeRDP from 3.0.0 before 3.32.2 contains a denial of service vulnerability that allows malicious RDP servers to abort clients built with verbose WinPR assertions by sending crafted RemoteFX region rectangles. Attackers can supply a rectangle with x set to 65535 alongside a SurfaceBits destination left of 1, triggering a 16-bit coordinate assertion in rfx_process_message that terminates the client process.
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