Freertos Kernel
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By the Year
In 2026 there have been 4 vulnerabilities in Freertos Kernel with an average score of 7.5 out of ten.
| Year | Vulnerabilities | Average Score |
|---|---|---|
| 2026 | 4 | 7.48 |
It may take a day or so for new Freertos Kernel vulnerabilities to show up in the stats or in the list of recent security vulnerabilities. Additionally vulnerabilities may be tagged under a different product or component name.
Recent Freertos Kernel Security Vulnerabilities
FreeRTOS-Kernel <11.3.1 QueueSet Access Validation Bug Unlocks Privileged Memory
CVE-2026-77237
6.5 - Medium
- August 21, 2026
Missing queue-set type validation in xQueueAddToSet() in the FreeRTOS-Kernel before 11.3.1 might allow an unprivileged task on MPU-enabled ports with configUSE_QUEUE_SETS=1 to read privileged kernel memory. To remediate this issue, users should upgrade to version 11.3.1 or later.
Object Type Confusion
FreeRTOSKernel 11.3.0: Heap Metadata OOB via Undersized Stack
CVE-2026-77236
7.3 - High
- August 21, 2026
Missing minimum size validation in secure context allocation in FreeRTOS-Kernel before 11.3.1 might allow local users to corrupt secure-world heap metadata via an out-of-bounds write with an undersized stack size parameter. To remediate this issue, users should upgrade to version 11.3.1 or later.
Memory Corruption
UAF via Missing Priv Verif in Secure Context Clean FreeRTOS-Kernel <11.3.1
CVE-2026-77235
7.3 - High
- August 21, 2026
Missing privilege verification in the secure context cleanup handler in FreeRTOS-Kernel before 11.3.1 might allow local users to cause a use-after-free condition in secure-world memory via the SVC handler for secure context deallocation. To remediate this issue, users should upgrade to version 11.3.1 or later.
Dangling pointer
FreeRTOS Kernel <11.3.1 Improper Input Validation Enables Privileged Execution
CVE-2026-77234
8.8 - High
- August 21, 2026
Improper input validation in FreeRTOS-Kernel before 11.3.1 might allow an unprivileged task on MPU-enabled ports to execute code in privileged kernel context. To remediate this issue, users should upgrade to version 11.3.1 or later.
AuthZ
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