CVE-2026-4179
stm32: usb: Infinite while loop in Interrupt Handler
MEDIUM
6.1
CVSS Score
Published: March 14, 2026 at 09:51 PM UTC
Updated: October 15, 2026 at 11:17 PM UTC
2 products affected across 2 vendorsZephyrZephyr
Using Zephyr by zephyrproject-rtos?
Get instant alerts when new vulnerabilities affect Zephyr - before attackers find them.
Real-time alertsTrack your software stackFree plan available
Severity
MEDIUM6.1
Exploit prediction
EPSS 0.2%
SSVC
PoC
Description
Issues in stm32 USB device driver (drivers/usb/device/usb_dc_stm32.c) can lead to an infinite while loop.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
v ≤ 4.3.0
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (1)
ExploitPatchVendor Advisory
Source: cverecord
https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-9xg7-g3q3-9prfSSVC — Action Prioritization
SSVCPoCNot automatablePartial impact
SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.
CVSS
6.1MEDIUMzephyr
- Attack Vector
- LOCAL
- Complexity
- LOW
- Privileges
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- LOW
- Availability
- HIGH
Vector?
Quick Info
StatusANALYZED
CWE
CWE-835
Get alerted
Stop reading CVE feeds looking for your own stack
Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.
Free plan, no card