Bug 2566790 - CVE-2026-121411 freerdp2: FreeRDP: Denial of Service via oversized graphic scaling dimensions [epel-all]
Summary: CVE-2026-121411 freerdp2: FreeRDP: Denial of Service via oversized graphic sc...
Keywords:
Status: NEW
Alias: None
Product: Fedora EPEL
Classification: Fedora
Component: freerdp2
Version: epel10
Hardware: Unspecified
OS: Unspecified
low
low
Target Milestone: ---
Assignee: Neal Gompa
QA Contact:
URL:
Whiteboard: {"flaws": ["deaa47d0-54d1-412c-8a8a-2...
Depends On:
Blocks: CVE-2026-121411
TreeView+ depends on / blocked
 
Reported: 2026-11-04 09:38 UTC by Vladimir Vasilev
Modified: 2026-11-04 09:38 UTC (History)
4 users (show)

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

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Description Vladimir Vasilev 2026-11-04 09:38:37 UTC 
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

FreeRDP before 3.32.2 fails to bound server-supplied target dimensions and output origin in RDPGFX MAPSURFACETOSCALEDOUTPUT PDUs, allowing malicious RDP servers to abort X11 clients. Attackers can map a surface to oversized scaled output, triggering checked UINT16 cast or freerdp_image_scale stride assertion failures that terminate the client.
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