6.1

CVE-2026-4179: zephyrproject-rtos zephyr Infinite Loop

CVSS: 6.1v3.1MediumAnalyzed
Published 14-03-2026Last modified 15-10-2026
Open JSON

Vulnerability summary

CVE-2026-4179 is a medium (CVSS 6.1) Infinite Loop vulnerability in zephyrproject-rtos zephyr. EPSS estimates a 0.15% chance of exploitation in the next 30 days, higher than 4.1% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
34/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.1/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.15%
0%100%
Low · -0.03 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github

Timeline

  1. 14-03-2026
    PublishedVulnerability first disclosed.
  2. 15-10-2026
    Last modifiedVulnerability information updated.

Description

Issues in stm32 USB device driver (drivers/usb/device/usb_dc_stm32.c) can lead to an infinite while loop.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.15%

Chance of exploitation in the next 30 days

Percentile

4%

Versus all other CVEs

30-day change

-0.03 pp

From 0.18% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.15%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • githubUnverified

    Zephyr

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Zephyrproject1 product
Zephyrproject-rtos1 product
  • zephyr< 3.7.2 | ≥ 4.0.0, < 4.2.2 | ≥ 4.3.0, < 4.3.1

2 vendors · 2 products

References

1 links