Buffer Overflow Affecting zephyrproject-rtos/zephyr package, versions [,4.3.0-rc1)
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Test your applications- Snyk IDSNYK-UNMANAGED-ZEPHYRPROJECTRTOSZEPHYR-14122804
- published27 Nov 2025
- disclosed26 Nov 2025
- creditPaschal Amusuo
Introduced: 26 Nov 2025
NewCVE-2025-9558 (opens in a new tab)Common Vulnerabilities and Exposures (CVE) are common identifiers for publicly known security vulnerabilities
Common Weakness Enumeration (CWE) is a category system for software weaknesses
How to fix?
Upgrade zephyrproject-rtos/zephyr to version 4.3.0-rc1 or higher.
Overview
Affected versions of this package are vulnerable to Buffer Overflow via the gen_prov_start function. An attacker can execute arbitrary code, cause a denial of service, or compromise data integrity by sending specially crafted data that exceeds the expected buffer size.