Description
Missing privilege verification in the secure context cleanup handler in FreeRTOS-Kernel before 11.3.1 might allow local users to cause a use-after-free condition in secure-world memory via the SVC handler for secure context deallocation. To remediate this issue, users should upgrade to version 11.3.1 or later.
Published: 2026-08-21
Score: 8.3 High
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Fri, 21 Aug 2026 20:00:00 +0000

Type Values Removed Values Added
References

Fri, 21 Aug 2026 18:15:00 +0000

Type Values Removed Values Added
Description Missing privilege verification in the secure context cleanup handler in FreeRTOS-Kernel before 11.3.1 might allow local users to cause a use-after-free condition in secure-world memory via the SVC handler for secure context deallocation.  To remediate this issue, users should upgrade to version 11.3.1 or later. Missing privilege verification in the secure context cleanup handler in FreeRTOS-Kernel before 11.3.1 might allow local users to cause a use-after-free condition in secure-world memory via the SVC handler for secure context deallocation. To remediate this issue, users should upgrade to version 11.3.1 or later.

Fri, 21 Aug 2026 18:00:00 +0000

Type Values Removed Values Added
Description Missing privilege verification in the secure context cleanup handler in FreeRTOS-Kernel before 11.3.1 might allow local users to cause a use-after-free condition in secure-world memory via the SVC handler for secure context deallocation.  To remediate this issue, users should upgrade to version 11.3.1 or later.
Title Missing privilege check in SecureContext_FreeContext in FreeRTOS-Kernel
First Time appeared Freertos
Freertos freertos-kernel
Weaknesses CWE-416
CPEs cpe:2.3:a:freertos:freertos-kernel:*:*:*:*:*:*:*:*
Vendors & Products Freertos
Freertos freertos-kernel
References
Metrics cvssV3_1

{'score': 7.3, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:H'}

cvssV4_0

{'score': 8.3, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:H/SC:N/SI:H/SA:H'}

Subscriptions

Freertos Freertos-kernel
cve-icon MITRE

Status: PUBLISHED

Assigner: AMZN

Published:

Updated: 2026-08-21T19:42:23.681Z

Reserved: 2026-08-20T18:42:39.750Z

Link: CVE-2026-77235

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-08-21T18:16:51.657

Modified: 2026-08-21T20:16:45.067

Link: CVE-2026-77235

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-21T19:45:03Z

Weaknesses