CVE Watch1 ago 2026

CVE-2026-67303

FreeRDP before 3.29.0 contains a reachable assertion (WINPR_ASSERT(OutputBufferLength == BytesReturned)) in serial_process_irp_device_contro

CVSS

4.3

Medio

EPSS

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KEV

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Exploit Today

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0-100

Publicado: 1 ago 2026 · Última mod.: 1 ago 2026 · CWE-617

EPSS · 30d

Sin historial EPSS suficiente todavía.

Descripción técnica

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).

Referencias oficiales

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