CVE-2021-3510: Zephyrproject Zephyr

High severity, CVSS 7.5. EPSS: 1% chance of exploitation in the next 30 days.

Zephyr JSON decoder incorrectly decodes array of array. Zephyr versions >= >1.14.0, >= >2.5.0 contain Attempt to Access Child of a Non-structure Pointer (CWE-588). For more information, see https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-289f-7mw3-2qf4

Affected products

• Zephyrproject Zephyr: version 1.14.0 only; version 1.14.1 only; version 1.14.2 only; version 1.14.3 only; version 2.5.0 only; version 2.5.1 only; …

Published 2021-10-05. Last modified 2026-06-17.