Privilege Context Switching Error Affecting zephyrproject-rtos/zephyr package, versions [,4.2.1)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UNMANAGED-ZEPHYRPROJECTRTOSZEPHYR-13897408
- published12 Nov 2025
- disclosed11 Nov 2025
- creditAndy Ross
Introduced: 11 Nov 2025
NewCVE-2025-9408 (opens in a new tab)How to fix?
Upgrade zephyrproject-rtos/zephyr to version 4.2.1 or higher.
Overview
Affected versions of this package are vulnerable to Privilege Context Switching Error due to a race condition in system calls. An attacker can gain elevated privileges by exploiting this race from a malicious userspace process.