CVE-2025-9408 - Vulnerability Details - OpenCVE

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.

No CVSS v4.0

Attack Vector Local

Attack Complexity High

Privileges Required None

Scope Changed

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00019.

Exploitation none

Automatable no

Technical Impact total

Vendors	Products
Zephyrproject-rtos Subscribe	Zephyr Subscribe

No data.

No data.

OpenCVE Enrichment is a feature of OpenCVE that uses AI to automatically link vendors and products to CVEs. Learn more on GitHub.

Vendors	Products
Zephyrproject-rtos Subscribe	Zephyr Subscribe

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References

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

History

Thu, 13 Nov 2025 18:15:00 +0900

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

Wed, 12 Nov 2025 22:00:00 +0900

Type	Values Removed	Values Added
First Time appeared		Zephyrproject-rtos Zephyrproject-rtos zephyr
Vendors & Products		Zephyrproject-rtos Zephyrproject-rtos zephyr

Wed, 12 Nov 2025 00:45:00 +0900

Type	Values Removed	Values Added
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.
Title		Userspace privilege escalation vulnerability on Cortex M
Weaknesses		CWE-270
References		https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-3r6j-5mp3-75wr
Metrics		cvssV3_1 `{'score': 8.2, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H'}`

Projects

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MITRE

Status: PUBLISHED

Assigner: zephyr

Published: 2025-11-11T15:34:58.719Z

Updated: 2025-11-12T20:02:52.616Z

Reserved: 2025-08-25T06:44:35.788Z

Link: CVE-2025-9408

Vulnrichment

Updated: 2025-11-12T14:54:07.390Z

NVD

Status : Awaiting Analysis

Published: 2025-11-11T16:15:40.917

Modified: 2025-11-12T16:19:34.210

Link: CVE-2025-9408

Redhat

No data.

OpenCVE Enrichment

Updated: 2025-11-12T21:42:28Z

Weaknesses

CWE-270

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