Medium severity · published Oct 26, 2026
CVE-2026-116488
NXP MCUXpresso SDK USB Middleware before 2.13.0 Heap Overflow via Host Class Drivers
New
6.8
CVSS
0.4%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Physical
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 31% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MC
mcuxsdk-middleware-usb · NXP
before 2.13.0 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-116488
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-116488
github.com
https://github.com/nxp-mcuxpresso/mcuxsdk-middleware-usb
github.com
https://github.com/nxp-mcuxpresso/mcuxsdk-middleware-usb/blob/release/26.06.00/host/class/usb_host_audio.c#L517
github.com
https://github.com/nxp-mcuxpresso/mcuxsdk-middleware-usb/commit/264b8e6849e609abd8e2b045bc7786818b0d2bbc
github.com
https://github.com/nxp-mcuxpresso/mcuxsdk-middleware-usb/commit/6a1d1a7c32026e6d83504415931c4ae97ef7b7a1
github.com
https://github.com/nxp-mcuxpresso/mcuxsdk-middleware-usb/commit/f615b03e302f0c58de5bf1cfeb31dfb85a2e514a
mcuxpresso.nxp.com
https://mcuxpresso.nxp.com/mcuxsdk/latest/release/index.html#release-highlights
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