CVE-2026-77236Missing size validation in SecureContext_AllocateContext in FreeRTOS-Kernel
Updated under an hour ago ()
Does this affect you?
It affects FreeRTOS-Kernel and 1 other product. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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Free account, 1 product
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.
- CVSS
- 7.3 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:H
- Weakness (CWE)
- CWE-787
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- AMZN
- NVD analysis
- Analyzed
- Record last updated
- Aug 21, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
FreeRTOS FreeRTOS-Kernel freertos:kernel (from the name) | from 10.2.0 through 11.3.0 | CNA record |
amazon freertos amazon:freertos | from 10.2.0 before 11.3.1 | NVD |
References
- https://aws.amazon.com/security/security-bulletins/2026-086-aws/vendor-advisory
- https://github.com/FreeRTOS/FreeRTOS-Kernel/releases/tag/V11.3.1patch, release-notes
- https://github.com/FreeRTOS/FreeRTOS-Kernel/security/advisories/GHSA-vq2f-9qj3-jj2mthird-party-advisory, vendor-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.