Vulnerability · Published Mar 14, 2026 · Assigned by zephyr
CVE-2026-4179stm32: usb: Infinite while loop in Interrupt Handler
Medium 6.1
In plain English
A medium-severity infinite loop in Zephyr from zephyrproject-rtos. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 8% of all known vulnerabilities).
Severity (CVSS 3.1)6.1Medium
Exploit odds (30 days)0.2%top 91.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
Issues in stm32 USB device driver (drivers/usb/device/usb_dc_stm32.c) can lead to an infinite while loop.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| zephyrproject-rtos | Zephyr | * – before 3.7.24.0.0 – before 4.2.24.3.0 – before 4.3.1 |
Weakness: CWE-835 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H