RT-Thread up to 5.0.2 SWM341 CAN SWM341.h CAN_Receive stack-based overflow

CVSS Meta Temp Score
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CTI Interest Score
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7.1$0-$5k2.32

Summaryinfo

A vulnerability was found in RT-Thread up to 5.0.2 and classified as critical. This affects the function CAN_Receive in the library bsp/synwit/libraries/SWM341_CSL/CMSIS/DeviceSupport/SWM341.h of the component SWM341 CAN Handler. Executing a manipulation can lead to stack-based overflow. The identification of this vulnerability is CVE-2026-14606. The attack can only be executed locally. Furthermore, there is an exploit available. The vendor was contacted early about this disclosure but did not respond in any way.

Detailsinfo

A vulnerability has been found in RT-Thread up to 5.0.2 and classified as critical. This vulnerability affects the function CAN_Receive in the library bsp/synwit/libraries/SWM341_CSL/CMSIS/DeviceSupport/SWM341.h of the component SWM341 CAN Handler. The manipulation with an unknown input leads to a stack-based overflow vulnerability. The CWE definition for the vulnerability is CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). As an impact it is known to affect confidentiality, integrity, and availability.

The advisory is available at github.com. This vulnerability was named CVE-2026-14606. The exploitation appears to be easy. Local access is required to approach this attack. Technical details and also a public exploit are known.

It is possible to download the exploit at github.com. It is declared as proof-of-concept. The vendor was contacted early about this disclosure but did not respond in any way.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Name

Version

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.8
VulDB Meta Temp Score: 7.1

VulDB Base Score: 7.8
VulDB Temp Score: 7.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Stack-based overflow
CWE: CWE-121 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: No

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

07/03/2026 Advisory disclosed
07/03/2026 +0 days VulDB entry created
07/03/2026 +0 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: 11425
Status: Not defined

CVE: CVE-2026-14606 (🔒)
GCVE (CVE): GCVE-0-2026-14606
GCVE (VulDB): GCVE-100-376114
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 07/03/2026 15:56
Changes: 07/03/2026 15:56 (57)
Complete: 🔍
Submitter: Zephyr Saxon
Cache ID: 216::103

Submitinfo

Accepted

  • Submit #844591: RT-Thread v5.0.2 Out-of-bounds Write (by Zephyr Saxon)

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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