Summary
Bulletin ID: 2026-158-AWS
Publication Date: 10/30/2026 10:30 AM PDT
Description:
FreeRTOS-Kernel is a real-time operating system kernel for microcontrollers and small microprocessors, distributed by Amazon. We identified CVE-2026-119086, the queue-set selection path does not fully validate that the referenced kernel object is a queue set before operating on it.
On MPU-enabled builds with queue sets enabled, an unprivileged task can cause the kernel to write beyond the intended destination while executing in a privileged context, which affects the integrity of privileged execution. Applications that are built without queue sets are not affected.
Impacted versions: >=V7.4.0 AND <=V11.3.2 (MPU-enabled ports with configUSE_QUEUE_SETS=1)
Please refer to the article below for the most up-to-date and complete information related to this AWS Security Bulletin.
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Products covered
A separate affected-products list was not included in the collected bulletin.
Remediation
Separate remediation guidance was not included in the collected bulletin.
CVEs in this advisory 1
Updates
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- Added to SecurityAlert
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