PT-2026-79418 · Unknown · Freertos Kernel

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CVE-2026-77236

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Published

2026-08-21

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Updated

2026-08-21

CVSS v4.0

8.3

High

VectorAV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:H/SC:N/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Name of the Vulnerable Software and Affected Versions FreeRTOS-Kernel versions prior to 11.3.1
Description Missing minimum size validation in secure context allocation allows local users to corrupt secure-world heap metadata. This occurs via an out-of-bounds write when an undersized stack size parameter is used within the SecureContext AllocateContext() function.
Recommendations Upgrade to version 11.3.1 or later.

Fix

Memory Corruption

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Weakness Enumeration

Related Identifiers

CVE-2026-77236

Affected Products

Freertos Kernel