What is CVE-2026-10668?

CVE-2026-10668 is a low-severity vulnerability in Zephyrproject Zephyr, classified under Uncontrolled Resource Consumption. CVSS score: 2.4/10. Published 2026-07-12.

How severe is CVE-2026-10668?

Low severity. CVSS v3 base score is 2.4 out of 10.

Resource exhaustion in Zephyrproject Zephyr

CVE-2026-10668

The Nuvoton NuMaker HSUSBD USB device-controller driver (drivers/usb/udc/udc_numaker.c) armed the control Data IN stage unconditionally (base->CEPTXCNT = len in numaker_hsusbd_ep_trigger). Because the HSUSBD hardware cannot disarm a contro…

Vulnerability class: DoS (Denial of Service)

CVSS v3 metric

CVSS v3 base score 2.4 (Low). Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.

Affected products

Zephyrproject Zephyr — versions 4.4.0

Weakness classification (CWE)

CWE-400 — Uncontrolled Resource Consumption

References

vulnerabilities@zephyrproject.org (patch)
vulnerabilities@zephyrproject.org

Frequently asked questions

What is CVE-2026-10668?: CVE-2026-10668 is a low-severity vulnerability in Zephyrproject Zephyr, classified under Uncontrolled Resource Consumption. CVSS score: 2.4/10. Published 2026-07-12.
How severe is CVE-2026-10668?: Low severity. CVSS v3 base score is 2.4 out of 10.