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Product
Freertos
by Amazon · last CVE Aug 21, 2026
21
CVEs
0
On KEV
9.8
Max CVSS
0
New 30D
Vulnerabilities21In the news0Timeline
Severity mix
Critical 3High 11Medium 7Low 0
Severity
All severities21Critical3High11Medium7Low0
Exploitation
On CISA KEV0Exploited in the wild0
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CVECVSSEPSSPublishedSummary · affected versions
CVE-2021-32020
9.8
1%
May 3
The kernel in Amazon Web Services FreeRTOS before 10.4.3 has insufficient bounds checking during management of heap memory
Affected: before 10.4.3
CVE-2021-31572
9.8
1%
Apr 22
The kernel in Amazon Web Services FreeRTOS before 10.4.3 has an integer overflow in stream_buffer.c for a stream buffer
Affected: before 10.4.3
CVE-2021-31571
9.8
1%
Apr 22
The kernel in Amazon Web Services FreeRTOS before 10.4.3 has an integer overflow in queue.c for queue creation
Affected: before 10.4.3
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