Amazon FreeRTOS vulnerabilities (CVE)

CVE records published for Amazon FreeRTOS, newest first. Follow to get an email when a new one appears.

5 results
6.5Medium
CVE-2026-77237

Missing type validation in xQueueAddToSet in FreeRTOS-Kernel

FreeRTOS 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 ver…

7.5High
CVE-2025-5688

Out of Bounds Write in FreeRTOS-Plus-TCP

Amazon FreeRTOS

We have identified a buffer overflow issue allowing out-of-bounds write when processing LLMNR or mDNS queries with very long DNS names. This issue only affects systems using Buffer Allocation Scheme 1 with LLMNR or mDNS enabled. Users should upgrade to the …