CVE-2026-119086: high-severity vulnerability in FreeRTOS-Kernel
Missing type validation in xQueueSelectFromSet in FreeRTOS-Kernel
Published
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21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.2epss 0.2%
Missing queue-set type validation in the queue-set selection system call in FreeRTOS-Kernel before V11.3.3 on MPU-enabled ports with queue sets enabled allows a local unprivileged task to write actor-controlled data beyond a pointer-sized object on the privileged kernel stack, affecting privileged memory across the MPU isolation boundary.
To remediate this issue, users should upgrade to FreeRTOS-Kernel V11.3.3, rebuild, and reflash affected firmware. Builds that do not enable queue sets are not affected.
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:H/SA:N
Affected products
FreeRTOS · FreeRTOS-KernelRelated CVEs — FreeRTOS-Kernel
In the same product, most dangerous first.
CVE-2024-28115HIGHPrivilege Escalation in FreeRTOS Kernel ARMv7-M MPU ports and ARMv8-M ports with MPU support enabledEPSS 0.2%CVE-2026-77237HIGHMissing type validation in xQueueAddToSet in FreeRTOS-KernelEPSS 0.2%CVE-2026-77234CRITICALImproper input validation in FreeRTOS-Kernel timer command handlingEPSS 0.2%CVE-2026-77236HIGHMissing size validation in SecureContext_AllocateContext in FreeRTOS-KernelEPSS 0.2%CVE-2026-109588CRITICALNumeric truncation in the MPU buffer authorization check in FreeRTOS-KernelEPSS 0.2%CVE-2026-77235HIGHMissing privilege check in SecureContext_FreeContext in FreeRTOS-KernelEPSS 0.2%