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Critical severity9.8NVD Advisory· Published May 3, 2021· Updated Jun 17, 2026

CVE-2021-32020

CVE-2021-32020

Description

The kernel in Amazon Web Services FreeRTOS before 10.4.3 has insufficient bounds checking during management of heap memory.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

4

Amazon/FreeRTOS2 versions
cpe:2.3:o:amazon:freertos:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:amazon:freertos:*:*:*:*:*:*:*:*range: <10.4.3
- (no CPE)range: <10.4.3
Amazon Web Services/FreeRTOSdescription
FreeRTOS/FreeRTOS-Kernelllm-fuzzy
Range: <10.4.3

Patches

Vulnerability mechanics

References

1

github.com/FreeRTOS/FreeRTOS-Kernel/commit/c7a9a01c94987082b223d3e59969ede64363da63nvdPatchThird Party Advisory

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