CVE-2026-14606

HIGH

RT-Thread SWM341 CAN SWM341.h CAN_Receive stack-based overflow

Title source: cna
STIX 2.1

Description

A security flaw has been discovered in RT-Thread up to 5.0.2. Affected by this issue is the function CAN_Receive in the library bsp/synwit/libraries/SWM341_CSL/CMSIS/DeviceSupport/SWM341.h of the component SWM341 CAN Handler. Performing a manipulation results in stack-based buffer overflow. The attack needs to be approached locally. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

References (6)

Core 6
Core References
Vdb Entry, Technical Description vdb-entry technical-description
VDB-376114 | RT-Thread SWM341 CAN SWM341.h CAN_Receive stack-based overflow
https://vuldb.com/vuln/376114
Signature, Permissions Required signature permissions-required
VDB-376114 | CTI Indicators (IOB, IOC, IOA)
https://vuldb.com/vuln/376114/cti
Third Party Advisory third-party-advisory
CVE-2026-14606 | CVE Analysis and Report
https://vuldb.com/cve/CVE-2026-14606
Third Party Advisory third-party-advisory
Submit #844591 | RT-Thread v5.0.2 Out-of-bounds Write
https://vuldb.com/submit/844591

Scores

CVSS v3 7.8
EPSS 0.0014
EPSS Percentile 3.9%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact total

Details

CWE
CWE-119 CWE-121
Status published
Products (3)
None/RT-Thread 5.0.0
None/RT-Thread 5.0.1
None/RT-Thread 5.0.2
Published Jul 03, 2026
Tracked Since Jul 04, 2026