CVE-2026-116488
CVE-2026-116488
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.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.8 (Medium). Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/nxp-mcuxpresso/mcuxsdk-middleware-usb/commit/264b8e6849e609abd8e2b04… (patch)
- github.com/nxp-mcuxpresso/mcuxsdk-middleware-usb/commit/6a1d1a7c32026e6d8350441… (patch)
- github.com/nxp-mcuxpresso/mcuxsdk-middleware-usb/commit/f615b03e302f0c58de5bf1c… (patch)
- github.com/nxp-mcuxpresso/mcuxsdk-middleware-usb/blob/release/26.06.00/host/cla… (technical-description)
- mcuxpresso.nxp.com/mcuxsdk/latest/release/index.html (release-notes)
- github.com/nxp-mcuxpresso/mcuxsdk-middleware-usb (product)
- www.vulncheck.com/advisories/nxp-mcuxpresso-sdk-usb-middleware-before-2.13.0-he… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-116488?
- CVE-2026-116488 is a medium-severity vulnerability, classified under Heap-based Buffer Overflow. CVSS score: 6.8/10. Published 2026-10-26.
- How severe is CVE-2026-116488?
- Medium severity. CVSS v3 base score is 6.8 out of 10.
- Is CVE-2026-116488 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.