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3 vulnerabilities by FreeRTOS
CVE-2026-8686 (GCVE-0-2026-8686)
Vulnerability from cvelistv5 – Published: 2026-05-15 18:38 – Updated: 2026-05-15 20:22
VLAI
Title
DoS from MQTT v5.0 Deserialization Fault in core MQTT
Summary
Missing bounds validation in the MQTT v5.0 property parser in coreMQTT before 5.0.1 allows an MQTT broker to cause a denial of service by sending a crafted packet.
To remediate this issue, users should upgrade to v5.0.1.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-125 - Out-of-bounds read
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/FreeRTOS/coreMQTT/releases/tag… | patch |
| https://aws.amazon.com/security/security-bulletin… | vendor-advisory |
| https://github.com/FreeRTOS/coreMQTT/security/adv… | third-party-advisory |
Credits
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CVE-2024-38373 (GCVE-0-2024-38373)
Vulnerability from cvelistv5 – Published: 2024-06-24 16:23 – Updated: 2024-08-02 04:04
VLAI
Title
FreeRTOS-Plus-TCP Buffer Over-Read in DNS Response Parser
Summary
FreeRTOS-Plus-TCP is a lightweight TCP/IP stack for FreeRTOS. FreeRTOS-Plus-TCP versions 4.0.0 through 4.1.0 contain a buffer over-read issue in the DNS Response Parser when parsing domain names in a DNS response. A carefully crafted DNS response with domain name length value greater than the actual domain name length, could cause the parser to read beyond the DNS response buffer. This issue affects applications using DNS functionality of the FreeRTOS-Plus-TCP stack. Applications that do not use DNS functionality are not affected, even when the DNS functionality is enabled. This vulnerability has been patched in version 4.1.1.
Severity
9.6 (Critical)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-126 - Buffer Over-read
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/FreeRTOS/FreeRTOS-Plus-TCP/sec… | x_refsource_CONFIRM |
| https://github.com/FreeRTOS/FreeRTOS-Plus-TCP/rel… | x_refsource_MISC |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| FreeRTOS | FreeRTOS-Plus-TCP |
Affected:
>= 4.0.0, <= 4.1.0
|
|
| amazon | freertos-plus-tcp |
Affected:
4.0.0 , < 4.1.1
(custom)
cpe:2.3:a:amazon:freertos-plus-tcp:4.0.0:*:*:*:*:*:*:* |
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CVE-2024-28115 (GCVE-0-2024-28115)
Vulnerability from cvelistv5 – Published: 2024-03-07 20:54 – Updated: 2024-08-28 17:42
VLAI
Title
Privilege Escalation in FreeRTOS Kernel ARMv7-M MPU ports and ARMv8-M ports with MPU support enabled
Summary
FreeRTOS is a real-time operating system for microcontrollers. FreeRTOS Kernel versions through 10.6.1 do not sufficiently protect against local privilege escalation via Return Oriented Programming techniques should a vulnerability exist that allows code injection and execution. These issues affect ARMv7-M MPU ports, and ARMv8-M ports with Memory Protected Unit (MPU) support enabled (i.e. `configENABLE_MPU` set to 1). These issues are fixed in version 10.6.2 with a new MPU wrapper.
Severity
8.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-284 - Improper Access Control
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/FreeRTOS/FreeRTOS-Kernel/secur… | x_refsource_CONFIRM |
| https://github.com/FreeRTOS/FreeRTOS-Kernel/relea… | x_refsource_MISC |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| FreeRTOS | FreeRTOS-Kernel |
Affected:
< 10.6.2
|
|
| freertos | freertos-kernel |
Affected:
0 , < 10.6.2
(custom)
cpe:2.3:o:freertos:freertos-kernel:*:*:*:*:*:*:*:* |
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