Buffer Overflow Vulnerability in SWM341 CAN Handler by RT-Thread
CVE-2026-14606

8.5HIGH

Key Information:

Vendor: RT-Thread
Status: Rt-thread
Vendor: CVE Published:; 3 July 2026

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👾 Exploit Exists🟡 Public PoC

What is CVE-2026-14606?

A vulnerability has been identified in the RT-Thread SWM341 CAN Handler up to version 5.0.2, specifically in the CAN_Receive function found in the CMSIS DeviceSupport library. This flaw allows for a stack-based buffer overflow, which can be exploited locally to manipulate the application's execution flow. Publicly available exploit techniques may facilitate potential attacks, highlighting the importance of prompt mitigation and response. Despite early notification, the vendor has not addressed this issue, increasing risks for affected users.

Affected Version(s)

RT-Thread 5.0.0

RT-Thread 5.0.1

RT-Thread 5.0.2

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-14606 - Proof of Concept