CVE-2026-119086 (GCVE-0-2026-119086)

Vulnerability from cvelistv5 – Published: 2026-10-30 17:33 – Updated: 2026-10-30 20:04
VLAI
Title
Missing type validation in xQueueSelectFromSet in FreeRTOS-Kernel
Summary
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.
Severity
6.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N
8.2 (High)
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
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-30 20:04 UTC
CWE
  • CWE-843 - Access of resource using incompatible type ('type confusion')
  • CWE-121 - Stack-based buffer overflow
Assigner
AMZN CNA under the mitre root
CNA scorecard A 94/100 over 145 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
FreeRTOS FreeRTOS-Kernel Affected: 7.4.0 , ≤ 11.3.2 (custom)
    cpe:2.3:a:freertos:freertos-kernel:*:*:*:*:*:*:*:*
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