CVE-2026-119086: FreeRTOS-Kernel · Type Confusion
Affects FreeRTOS-KernelSource CVE Database V5
Not known to be exploited · CVSS 6.5 Medium.
Data as of 30 Oct 2026, 17:48 UTC
Thin evidence
One scorer or none| CNA (AMZN) | CVSS 3.1 | 6.5 |
|---|---|---|
| CNA (AMZN) | CVSS 4.0 | 8.2 |
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:NExploitation evidence
Disclosed: evidence found.
CVE published 30 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| FreeRTOSFreeRTOS-Kernel | Affected
| Fixed in– |
Description
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.