CVE-2026-14606: Stack-based Buffer Overflow in RT-Thread
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.
AI Analysis
Technical Summary
CVE-2026-14606 is a stack-based buffer overflow vulnerability in the CAN_Receive function within the SWM341 CAN Handler component of RT-Thread up to version 5.0.2. The vulnerability arises from improper handling of input in the bsp/synwit/libraries/SWM341_CSL/CMSIS/DeviceSupport/SWM341.h file. Exploitation requires local access and can result in significant impact to confidentiality, integrity, and availability. The vendor has not issued a fix or advisory, and a public exploit has been released.
Potential Impact
Successful exploitation of this vulnerability can lead to a stack-based buffer overflow, potentially allowing an attacker with local access to compromise system confidentiality, integrity, and availability. Given the high CVSS score of 8.5 and the presence of a public exploit, affected systems are at significant risk if not mitigated.
Mitigation Recommendations
No official patch or remediation has been provided by the vendor. Users should consider restricting local access to affected systems and monitor for exploitation attempts. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance.
CVE-2026-14606: Stack-based Buffer Overflow in RT-Thread
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.
CVSS v4.0
Score 8.5high
Affected software
pkg:github/rt-thread/rt-threadcpe:2.3:a:rt-thread:rt-thread:*:*:*:*:*:*:*:*Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-14606 is a stack-based buffer overflow vulnerability in the CAN_Receive function within the SWM341 CAN Handler component of RT-Thread up to version 5.0.2. The vulnerability arises from improper handling of input in the bsp/synwit/libraries/SWM341_CSL/CMSIS/DeviceSupport/SWM341.h file. Exploitation requires local access and can result in significant impact to confidentiality, integrity, and availability. The vendor has not issued a fix or advisory, and a public exploit has been released.
Potential Impact
Successful exploitation of this vulnerability can lead to a stack-based buffer overflow, potentially allowing an attacker with local access to compromise system confidentiality, integrity, and availability. Given the high CVSS score of 8.5 and the presence of a public exploit, affected systems are at significant risk if not mitigated.
Mitigation Recommendations
No official patch or remediation has been provided by the vendor. Users should consider restricting local access to affected systems and monitor for exploitation attempts. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-07-03T13:51:36.756Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a4812dd27e9c7971995dac4
Added to database: 07/03/2026, 19:51:57 UTC
Last enriched: 07/03/2026, 20:06:18 UTC
Last updated: 07/03/2026, 20:57:36 UTC
Views: 7
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