VendorsAmazonfreertosany version
Vulnerabilities

Amazon FreeRTOS any version

Ranked by severity, then by exploit likelihood. Click a CVE ID for its full record.

20CVEs
CVE-2021-31571
The kernel in Amazon Web Services FreeRTOS before 10.4.3 has an integer overflow in queue.c for queue creation.
Published 2021-04-22 · Modified
9.8EPSS 0.014
CVE-2021-31572
The kernel in Amazon Web Services FreeRTOS before 10.4.3 has an integer overflow in stream_buffer.c for a stream buffer.
Published 2021-04-22 · Modified
9.8EPSS 0.014
CVE-2021-32020
The kernel in Amazon Web Services FreeRTOS before 10.4.3 has insufficient bounds checking during management of heap memory.
Published 2021-05-03 · Modified
9.8EPSS 0.013
CVE-2026-77234
Improper input validation in FreeRTOS-Kernel timer command handling
Published 2026-08-21 · Analyzed
9.3EPSS 0.001
CVE-2024-28115
Privilege Escalation in FreeRTOS Kernel ARMv7-M MPU ports and ARMv8-M ports with MPU support enabled
Published 2024-03-07 · Modified
8.8EPSS 0.002
CVE-2026-77237
Missing type validation in xQueueAddToSet in FreeRTOS-Kernel
Published 2026-08-21 · Analyzed
8.4EPSS 0.001
CVE-2026-77236
Missing size validation in SecureContext_AllocateContext in FreeRTOS-Kernel
Published 2026-08-21 · Analyzed
8.3EPSS 0.001
CVE-2026-77235
Missing privilege check in SecureContext_FreeContext in FreeRTOS-Kernel
Published 2026-08-21 · Analyzed
8.3EPSS 0.001
CVE-2018-16525
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 execute arbitrary code or leak information because of a Buffer Overflow during parsing of DNS\LLMNR packets in prvParseDNSReply.
Published 2018-12-06 · Modified
8.1EPSS 0.044
CVE-2018-16526
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 leak information or execute arbitrary code because of a Buffer Overflow during generation of a protocol checksum in usGenerateProtocolChecksum and prvProcessIPPacket.
Published 2018-12-06 · Modified
8.1EPSS 0.044
CVE-2018-16601
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. A crafted IP header triggers a full memory space copy in prvProcessIPPacket, leading to denial of service and possibly remote code execution.
Published 2018-12-06 · Modified
8.1EPSS 0.042
CVE-2021-43997
FreeRTOS versions 10.2.0 through 10.4.5 do not prevent non-kernel code from calling the xPortRaisePrivilege internal function to raise privilege. FreeRTOS versions through 10.4.6 do not prevent a third party that has already independently gained the ability to execute injected code to achieve further privilege escalation by branching directly inside a FreeRTOS MPU API wrapper function with a manually crafted stack frame. These issues affect ARMv7-M MPU ports, and ARMv8-M ports with MPU support enabled (i.e. configENABLE_MPU set to 1). These are fixed in V10.5.0 and in V10.4.3-LTS Patch 3.
Published 2021-11-17 · Modified
7.8EPSS 0.003
CVE-2018-16523
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 prvCheckOptions.
Published 2018-12-06 · Modified
7.4EPSS 0.020
CVE-2018-16527
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 information disclosure during parsing of ICMP packets in prvProcessICMPPacket.
Published 2018-12-06 · Modified
5.9EPSS 0.019
CVE-2018-16602
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. Out of bounds memory access during parsing of DHCP responses in prvProcessDHCPReplies can be used for information disclosure.
Published 2018-12-06 · Modified
5.9EPSS 0.018
CVE-2018-16524
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 information disclosure during parsing of TCP options in prvCheckOptions.
Published 2018-12-06 · Modified
5.9EPSS 0.018
CVE-2018-16600
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. Out of bounds memory access during parsing of ARP packets in eARPProcessPacket can be used for information disclosure.
Published 2018-12-06 · Modified
5.9EPSS 0.018
CVE-2018-16599
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. Out of bounds memory access during parsing of NBNS packets in prvTreatNBNS can be used for information disclosure.
Published 2018-12-06 · Modified
5.9EPSS 0.018
CVE-2018-16603
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. Out of bounds access to TCP source and destination port fields in xProcessReceivedTCPPacket can leak data back to an attacker.
Published 2018-12-06 · Modified
5.9EPSS 0.018
CVE-2018-16598
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. In xProcessReceivedUDPPacket and prvParseDNSReply, any received DNS response is accepted, without confirming it matches a sent DNS request.
Published 2018-12-06 · Modified
5.9EPSS 0.015