CVE-2026-119086

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 v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.0 / Impact : 4.0

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://aws.amazon.com/security/security-bulletins/2026-158-aws/
https://github.com/FreeRTOS/FreeRTOS-Kernel/releases/tag/V11.3.3
https://github.com/FreeRTOS/FreeRTOS-Kernel/security/advisories/GHSA-56j9-g43f-8g6v

Configurations

No configuration.

History

30 Oct 2026, 18:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-30 18:17

Updated : 2026-10-30 20:17

NVD link : CVE-2026-119086

Mitre link : CVE-2026-119086

CVE.ORG link : CVE-2026-119086

JSON object : View

Products Affected

No product.

CWE

CWE-121

Stack-based Buffer Overflow

CWE-843

Access of Resource Using Incompatible Type ('Type Confusion')

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