7.3High
CVE-2026-77236Missing size validation in SecureContext_AllocateContext in FreeRTOS-Kernel
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.
Weakness (CWE):
CWE-787
Data: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Published as the sources state it, in English.
Affected products and versions
| Vendor | Product | Versions | |
|---|---|---|---|
| amazon | freertos | 10.2.0 – < 11.3.1 | |
| FreeRTOS | FreeRTOS-Kernel | 10.2.0 – ≤ 11.3.0 |
References and patches
- https://aws.amazon.com/security/security-bulletins/2026-086-aws/ vendor-advisoryVendor Advisory
- https://github.com/FreeRTOS/FreeRTOS-Kernel/releases/tag/V11.3.1 patchRelease Notes
- https://github.com/FreeRTOS/FreeRTOS-Kernel/security/advisories/GHSA-vq2f-9qj3-jj2m third-party-advisoryVendor Advisory
CPE matches (NVD) (1)
cpe:2.3:o:amazon:freertos:*:*:*:*:*:*:*:*≥ 10.2.0 < 11.3.1