Vulnerability Description
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.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://aws.amazon.com/security/security-bulletins/2026-086-aws/
- https://github.com/FreeRTOS/FreeRTOS-Kernel/releases/tag/V11.3.1
- https://github.com/FreeRTOS/FreeRTOS-Kernel/security/advisories/GHSA-w3vr-pr75-5
FAQ
What is CVE-2026-77234?
CVE-2026-77234 is a vulnerability with a CVSS score of 8.8 (HIGH). 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 upg...
How severe is CVE-2026-77234?
CVE-2026-77234 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-77234?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.