CVE-2025-9408

Nov. 12, 2025, 4:19 p.m.

8.1
High

Description

System call entry on Cortex M (and possibly R and A, but I think not) has a race which allows very practical privilege escalation for malicious userspace processes.

Product(s) Impacted

Product Versions
zephyr
  • 0.0.1
cortex_m
  • *

Weaknesses

Common security weaknesses mapped to this vulnerability.

CWE-270
Privilege Context Switching Error
The product does not properly manage privileges while it is switching between different contexts that have different privileges or spheres of control.

References

https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-3r6j-5mp3-75wr

Tags

CWE-270
vulnerabilities@zephyrproject.org
2025-11-11
CVE-2025-9408

CVSS Score

8.1 / 10

CVSS Data - 3.1

  • Attack Vector: LOCAL
  • Attack Complexity: HIGH
  • Privileges Required: NONE
  • Scope: CHANGED
  • Confidentiality Impact: HIGH
  • Integrity Impact: HIGH
  • Availability Impact: HIGH

    • CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

    View Vector String

Timeline

Published: Nov. 11, 2025, 4:15 p.m.
Last Modified: Nov. 12, 2025, 4:19 p.m.

Status : Awaiting Analysis

CVE has been marked for Analysis. Normally once in this state the CVE will be analyzed by NVD staff within 24 hours.

More info

Source

vulnerabilities@zephyrproject.org

*Disclaimer: Some vulnerabilities do not have an associated CPE. To enhance the data, we use AI to infer CPEs based on CVE details. This is an automated process and might not always be accurate.