Description
Missing minimum size validation in secure context allocation in FreeRTOS-Kernel before 11.3.1 might allow local users to corrupt secure-world heap metadata via an out-of-bounds write with an undersized stack size parameter. 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

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Tracking

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Advisories

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History

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

Type Values Removed Values Added
Description Missing minimum size validation in secure context allocation in FreeRTOS-Kernel before 11.3.1 might allow local users to corrupt secure-world heap metadata via an out-of-bounds write with an undersized stack size parameter. To remediate this issue, users should upgrade to version 11.3.1 or later.
Title Missing size validation in SecureContext_AllocateContext in FreeRTOS-Kernel
First Time appeared Freertos
Freertos freertos-kernel
Weaknesses CWE-787
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:H/VI:N/VA:N/SC:N/SI:H/SA:H'}

Subscriptions

Freertos Freertos-kernel
cve-icon MITRE

Status: PUBLISHED

Assigner: AMZN

Published:

Updated: 2026-08-21T17:47:49.957Z

Reserved: 2026-08-20T18:42:40.136Z

Link: CVE-2026-77236

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-08-21T18:16:51.800

Modified: 2026-08-21T18:16:51.800

Link: CVE-2026-77236

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses