---
id: "CVE-2026-116488"
kind: "vulnerability"
aliases: ["CVE-2026-116488"]
title: "NXP USB middleware: crafted USB descriptors overflow heap, enabling code execution"
severity: "high"
cvss: 7.0
epss: null
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["embedded", "mcuxpresso-sdk", "nxp", "package", "usb-host"]
not_affected_if: ["host-class-drivers-disabled", "usb-device-only"]
published_at: "2026-10-26T14:16:37+00:00"
first_seen_at: "2026-10-26T14:30:37+00:00"
updated_at: "2026-10-26T14:32:29+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-116488", "first_seen_at": "2026-10-26T14:30:37+00:00"}]
---

# NXP USB middleware: crafted USB descriptors overflow heap, enabling code execution

The NXP MCUXpresso SDK USB host middleware trusts endpoint counts and lengths from a connected USB device, so a malicious device can write past a fixed heap array. An attacker with such a device can corrupt memory to crash the firmware or run code on the microcontroller.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Check the version of `mcuxsdk-middleware-usb` in your MCUXpresso SDK manifest or project; versions below `2.13.0` are affected.
- Confirm whether your firmware enables the USB host audio, video or CDC class drivers.

## Fix

- Upgrade `mcuxsdk-middleware-usb` to `2.13.0` or later and rebuild the firmware.

## Timeline

- 2026-10-26T14:30:37+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-116488

## From the sources

NXP MCUXpresso SDK USB middleware (mcuxsdk-middleware-usb) before 2.13.0 contains a heap buffer overflow in host audio, video and CDC class drivers that trust device-supplied bNumEndpoints and bLength values. A malicious USB device can supply crafted descriptors that write endpoint entries past the fixed-size epList array, corrupting heap memory for code execution or denial of service.

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_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_