High severity8.8NVD Advisory· Published Aug 21, 2026· Updated Aug 21, 2026

CVE-2026-77234

Description

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.

Affected products

FreeRTOS/FreeRTOS-Kernelllm-fuzzy
Range: >=11.3.1
Amazon/AWSllm-create
Range: >=11.3.1

Patches

Vulnerability mechanics

References

aws.amazon.com/security/security-bulletins/2026-086-aws/nvd
github.com/FreeRTOS/FreeRTOS-Kernel/releases/tag/V11.3.1nvd
github.com/FreeRTOS/FreeRTOS-Kernel/security/advisories/GHSA-w3vr-pr75-5hc6nvd

News mentions

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