CVE-2026-14606

HIGHPre-NVD 7.87.8—
EchelonGraph scoreHIGH confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2026-07-03. a secondary CVSS source baseline 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 5 sources updated this weekElevated
7.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 7.8Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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 v3
7.8
EG Score
7.8(high)
EPSS
3.8%
KEV
Not listed

Published

July 3, 2026

Last Modified

July 6, 2026

Advisory Details (2)

Auto-updated Jul 3, 2026
No patch confirmed yet.
generic

[Bug] Security-related Bug: SWM341 CAN receive path trusts raw DLC and writes past fixed receive buffers · Issue #11425 · RT-Thread/rt-thread · GitHub

https://github.com/RT-Thread/rt-thread/issues/11425
generic

GitHub - RT-Thread/rt-thread: RT-Thread is an open source IoT Real-Time Operating System (RTOS). https://rt-thread.github.io/rt-thread/ · GitHub

https://github.com/RT-Thread/rt-thread/

Vendor Advisories for CVE-2026-14606(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 19× in last 7d / 19× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-07 02:27 UTCEG score recompute
  2. 2026-07-07 02:26 UTCGHSA enrichment
  3. 2026-07-06 21:35 UTCNVD updateCVSS v4 → 7.1
  4. 2026-07-06 20:29 UTCMITRE cvelistV5CVSS v4 → 8.5
  5. 2026-07-06 16:27 UTCEPSS rescore
  6. 2026-07-06 13:27 UTCEG score recompute
  7. 2026-07-06 13:27 UTCGHSA enrichment
  8. 2026-07-06 00:24 UTCEG score recompute
  9. 2026-07-06 00:23 UTCGHSA enrichment
  10. 2026-07-05 11:22 UTCEG score recompute
  11. 2026-07-05 11:22 UTCGHSA enrichment
  12. 2026-07-05 02:30 UTCEPSS rescore
  13. 2026-07-05 02:30 UTCEPSS rescore
  14. 2026-07-04 22:23 UTCEG score recompute
  15. 2026-07-04 22:23 UTCGHSA enrichment
  16. 2026-07-04 09:25 UTCEG score recompute
  17. 2026-07-04 09:25 UTCGHSA enrichment
  18. 2026-07-03 20:27 UTCEG score recompute
  19. 2026-07-03 20:27 UTCNVD updatefirst tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-14606?
CVE-2026-14606 is a high vulnerability published on July 3, 2026. A security flaw has been discovered in RT-Thread up to 5.0.2. Affected by this issue is the function CANReceive in the library bsp/synwit/libraries/SWM341CSL/CMSIS/DeviceSupport/SWM341.h of the component SWM341 CAN Handler. Performing a manipulation results in stack-based buffer overflow. The…
When was CVE-2026-14606 disclosed?
CVE-2026-14606 was first published in the National Vulnerability Database on July 3, 2026, with the most recent update on July 6, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-14606 actively exploited?
CVE-2026-14606 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 3.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-14606?
CVE-2026-14606 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2026-14606?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-14606, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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