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Affected Component
Analysis
freerdp
Exploitable
Name
CVE-2026-67303
Description
FreeRDP before 3.29.0 contains a reachable assertion (WINPR_ASSERT(OutputBufferLength == BytesReturned)) in serial_process_irp_device_control() in channels/serial/client/serial_main.c. When serial device redirection is enabled and a server-controlled IRP_MJ_DEVICE_CONTROL request specifies an unsupported IOCTL with a non-zero OutputBufferLength, CommDeviceIoControl() can fail with BytesReturned = 0, causing the mismatch to trigger the assertion and abort the client process (denial of service).
CWEs
Published Date
Updated Date
Workaround
-
Advisories
Analysis#
Vulnerability Ratings#
5.3
CVSSv4
4.3
CVSSv31
NaN
other