Vulnerability DatabaseCVE-2026-77234
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CVE-2026-77234
Published:August 21, 2026
Updated:September 24, 2026
Improper input validation in FreeRTOS-Kernel before 11.3.1 might allow an unprivileged task on MPU-enabled ports to execute code in privileged kernel context. To remediate this issue, users should upgrade to version 11.3.1 or later.
Affected Packages
https://github.com/FreeRTOS/FreeRTOS-Kernel.git (GITHUB):
Affected version(s) >=V7.0.0 <V11.3.1
Fix Suggestion:
Update to version V11.3.1
Related Resources (3)
https://github.com/FreeRTOS/FreeRTOS-Kernel/security/advisories/GHSA-w3vr-pr75-5hc6
https://aws.amazon.com/security/security-bulletins/2026-086-aws/
https://github.com/FreeRTOS/FreeRTOS-Kernel/releases/tag/V11.3.1
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CVSS v4
Base Score:
9.3
Attack Vector
LOCAL
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
HIGH
Subsequent System Integrity
HIGH
Subsequent System Availability
HIGH
CVSS v3
Base Score:
8.8
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Weakness Type (CWE)
Incorrect Authorization
CWE-863
EPSS
Base Score:
0.12