RT-Thread SWM341 CAN SWM341.h CAN_Receive stack-based overflow
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-119 and the CVSS impact.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | RT-Thread | 5.0.0; 5.0.1; 5.0.2 | — | No fix listed | CNA |
- RT-Thread Vendor— Affected 5.0.0; 5.0.1; 5.0.2 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-14606
- 2026-10-03 Alias added: GHSA-q2qc-v4ph-4mrq
References
Sources
- CVE-2026-14606 · CVE Program
- CVE-2026-14606 · NVD
- FIRST EPSS
- GHSA-q2qc-v4ph-4mrq · GitHub Advisory Database · CC BY 4.0
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