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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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Add Freertos to your stack to get only the CVEs that touch what you run.

CVECVSSEPSSPublishedSummary · affected versions
CVE-2026-77234
8.8
0%
Aug 21
Improper input validation in FreeRTOS-Kernel timer command handling
Affected: 7.0.0 before 11.3.1
CVE-2026-77237
8.4
0%
Aug 21
Missing type validation in xQueueAddToSet in FreeRTOS-Kernel
Affected: 7.4.0 before 11.3.1
CVE-2018-16601
8.1
4%
Dec 6
An issue was discovered in Amazon Web Services (AWS) FreeRTOS through 1.3.1, FreeRTOS up to V10.0.1 (with FreeRTOS+TCP), and WITTENSTEIN WHIS Connect middleware TCP/IP component
Affected: through 10.0.1
CVE-2018-16526
8.1
4%
Dec 6
Amazon Web Services (AWS) FreeRTOS through 1.3.1, FreeRTOS up to V10.0.1 (with FreeRTOS+TCP), and WITTENSTEIN WHIS Connect middleware TCP/IP component allow remote attackers to…
Affected: through 10.0.1
CVE-2018-16525
8.1
4%
Dec 6
Amazon Web Services (AWS) FreeRTOS through 1.3.1, FreeRTOS up to V10.0.1 (with FreeRTOS+TCP), and WITTENSTEIN WHIS Connect middleware TCP/IP component allow remote attackers to…
Affected: through 10.0.1
CVE-2024-28115
7.8
0%
Mar 7
FreeRTOS is a real-time operating system for microcontrollers
Affected: before 10.6.2
CVE-2021-27504
7.8
0%
Nov 21
Texas Instruments devices running FREERTOS, malloc returns a valid pointer to a small buffer on extremely large values, which can trigger an integer overflow vulnerability in…
Affected: 10.4.1
CVE-2021-43997
7.8
0%
Nov 17
FreeRTOS versions 10.2.0 through 10.4.5 do not prevent non-kernel code from calling the xPortRaisePrivilege internal function to raise privilege
Affected: 10.2.0 before 10.4.6; 10.4.3
CVE-2018-16523
7.4
2%
Dec 6
Amazon Web Services (AWS) FreeRTOS through 1.3.1, FreeRTOS up to V10.0.1 (with FreeRTOS+TCP), and WITTENSTEIN WHIS Connect middleware TCP/IP component allow division by zero in…
Affected: through 10.0.1
CVE-2026-77236
7.3
0%
Aug 21
Missing size validation in SecureContext_AllocateContext in FreeRTOS-Kernel
Affected: 10.2.0 before 11.3.1
CVE-2026-77235
7.3
0%
Aug 21
Missing privilege check in SecureContext_FreeContext in FreeRTOS-Kernel
Affected: 10.2.0 before 11.3.1
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