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Vulnerability record · CVE-2026-14606 · published 3 July 2026

CVE-2026-14606: Memory buffer overflow vulnerability

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.

7.1 CVSS 4.0 High EPSS 0.20% · top 91.5% CWE-119 · Memory buffer overflowCWE-121 · Stack-based buffer overflow Deferred
7.1CVSS 4.0 base score, v2 6.8
0.20%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
7References
6 Jul 2026Last modified by NVD

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:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

LinkTags
https://github.com/RT-Thread/rt-thread/
https://github.com/RT-Thread/rt-thread/issues/11425
https://vuldb.com/cve/CVE-2026-14606
https://vuldb.com/submit/844591
https://vuldb.com/vuln/376114
https://vuldb.com/vuln/376114/cti
https://vuldb.com/submit/844591

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Source: NIST National Vulnerability Database (record CVE-2026-14606), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.