CVE Intelligence

Freertos FreeRTOS-Kernel vulnerabilities

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Published CVEs affecting Freertos FreeRTOS-Kernel: 4 record(s), with affected versions and fixes.

CVE-2026-77237 High · 8.4 CWE-125 Aug 21, 2026
Missing type validation in xQueueAddToSet in FreeRTOS-Kernel
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.
CVE-2026-77236 High · 7.3 CWE-787 Aug 21, 2026
Missing size validation in SecureContext_AllocateContext in FreeRTOS-Kernel
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.
CVE-2026-77235 High · 7.3 CWE-416 Aug 21, 2026
Missing privilege check in SecureContext_FreeContext in FreeRTOS-Kernel
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.
CVE-2026-77234 High · 8.8 CWE-863 Aug 21, 2026
Improper input validation in FreeRTOS-Kernel timer command handling
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.