Bug 2565884 (CVE-2026-121405) - CVE-2026-121405 freerdp: FreeRDP: Denial of Service via excessive memory allocation in serial device redirection
Summary: CVE-2026-121405 freerdp: FreeRDP: Denial of Service via excessive memory allo...
Keywords:
Status: NEW
Alias: CVE-2026-121405
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: 2565988 2565990
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-11-03 15:31 UTC by OSIDB Bzimport
Modified: 2026-11-03 17:19 UTC (History)
2 users (show)

Fixed In Version:
Clone Of:
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Last Closed:
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Description OSIDB Bzimport 2026-11-03 15:31:51 UTC 
FreeRDP before 3.32.2 fails to cap the OutputBufferLength in serial device-control IRP requests, allowing malicious servers to trigger excessive memory allocation. Attackers running a server with serial redirection can send an IRP_MJ_DEVICE_CONTROL request with IOCTL_USBPRINT_GET_1284_ID and a near-maximum length to exhaust client memory.
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