CVE-2026-14606

HIGHPre-NVD 7.87.8
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to the CVSS score beside it.

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, GitHub Security Advisory, a secondary CVSS source
Trending — 3 sources updated this weekElevated

Also known asEUVD-2026-41563 (ENISA EUVD) · GHSA-q2qc-v4ph-4mrq (GitHub Security Advisories)Source: ENISA EUVD

7.8EG
EchelonGraph verdictPlan mitigationRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • CISA's Vulnrichment rates exploitation as PoC; EchelonGraph holds no exploit-code reference for it
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 7.8Exploit: No code on recordExposed services: Not assessed

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

The CVE record's description, written by its CNA (VulDB), states the affected versions: "A security flaw has been discovered in RT-Thread up to 5.0.2." No release containing a fix is confirmed on record.

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
7.8HIGHmedium confidence
EG Risk
51
EG Risk 51/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity78% × 45%
Impact severity (EG Severity): CVSS 7.8 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation40% × 40%
EchelonGraph's fixed weight for EG-KEV Tier 3 (Elevated): a constant, not a probability.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low, Track* at medium and Attend at high mission impact.
Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high, and watch the vendor's advisory for the fix.
EPSS PROB
0.2%
EPSS %ILE
9th
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (7.8): severity, escalated by confirmed exploitation. This CVE's 7.8 is its impact severity (EG Severity), not escalated.

EG Severity
7.8 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.2% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-24). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track* at medium mission impactTrack at low, Track* at medium and Attend at high mission impact.CISA BOD 26-04: 14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.Each input and its source: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at low, Track* at medium and Attend at high mission impact.

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high, and watch the vendor's advisory for the fix.

Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

July 3, 2026

Last Modified

July 6, 2026

Advisory Details (2)

Auto-updated Jul 3, 2026
No fix on record yet.
Web page

[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
Web page

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 10× in last 7d / 39× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 100 of 248 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 148 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-27 16:31 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  2. 2026-10-26 16:30 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  3. 2026-10-25 16:32 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  4. 2026-10-25 14:48 UTCEG score recompute
  5. 2026-10-24 16:32 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  6. 2026-10-24 01:37 UTCEG score recompute
  7. 2026-10-24 01:37 UTCGHSA enrichmentGHSA-q2qc-v4ph-4mrq · GitHub severity HIGH · GitHub CVSS 7.8
  8. 2026-10-23 16:31 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  9. 2026-10-22 16:33 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  10. 2026-10-21 16:32 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  11. 2026-10-20 16:32 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  12. 2026-10-19 16:31 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  13. 2026-10-18 16:31 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  14. 2026-10-18 05:02 UTCEG score recompute
  15. 2026-10-17 18:23 UTCEG score recompute
  16. 2026-10-17 18:22 UTCGHSA enrichmentGHSA-q2qc-v4ph-4mrq · GitHub severity HIGH · GitHub CVSS 7.8
  17. 2026-10-17 16:33 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  18. 2026-10-16 16:40 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  19. 2026-10-15 16:31 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  20. 2026-10-14 16:32 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  21. 2026-10-13 16:33 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  22. 2026-10-13 14:24 UTCOSV refresh
  23. 2026-10-12 16:33 UTCEG score recompute
  24. 2026-10-11 20:10 UTCEG score recompute
  25. 2026-10-11 18:22 UTCEG score recompute
Show 75 more
  1. 2026-10-11 14:56 UTCEG score recompute
  2. 2026-10-11 13:48 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  3. 2026-10-10 19:59 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  4. 2026-10-09 20:06 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  5. 2026-10-08 17:11 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  6. 2026-10-07 23:47 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  7. 2026-10-06 15:17 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  8. 2026-10-05 17:42 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  9. 2026-10-04 23:21 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  10. 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  11. 2026-10-01 19:49 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  12. 2026-09-30 15:02 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  13. 2026-09-29 15:20 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  14. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  15. 2026-09-27 13:47 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  16. 2026-09-26 15:58 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  17. 2026-09-23 06:34 UTCEG score recompute
  18. 2026-09-23 06:34 UTCGHSA enrichmentGHSA-q2qc-v4ph-4mrq · GitHub severity HIGH · GitHub CVSS 7.8
  19. 2026-09-18 19:27 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  20. 2026-09-18 06:11 UTCEG score recompute
  21. 2026-09-18 06:11 UTCGHSA enrichmentGHSA-q2qc-v4ph-4mrq · GitHub severity HIGH · GitHub CVSS 7.8
  22. 2026-09-16 14:07 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  23. 2026-09-16 05:14 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  24. 2026-09-14 00:02 UTCEG score recompute
  25. 2026-09-14 00:02 UTCGHSA enrichmentGHSA-q2qc-v4ph-4mrq · GitHub severity HIGH · GitHub CVSS 7.8
  26. 2026-09-13 16:46 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  27. 2026-09-13 08:55 UTCEG score recompute
  28. 2026-09-13 08:55 UTCGHSA enrichmentGHSA-q2qc-v4ph-4mrq · GitHub severity HIGH · GitHub CVSS 7.8
  29. 2026-09-12 15:00 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  30. 2026-09-12 14:04 UTCEG score recompute
  31. 2026-09-12 14:04 UTCGHSA enrichmentGHSA-q2qc-v4ph-4mrq · GitHub severity HIGH · GitHub CVSS 7.8
  32. 2026-09-11 14:52 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  33. 2026-09-11 09:36 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  34. 2026-09-10 09:34 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  35. 2026-09-08 22:00 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  36. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  37. 2026-09-06 14:17 UTCEG score recompute
  38. 2026-09-06 14:17 UTCGHSA enrichmentGHSA-q2qc-v4ph-4mrq · GitHub severity HIGH · GitHub CVSS 7.8
  39. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  40. 2026-09-05 23:44 UTCEG score recompute
  41. 2026-09-05 23:44 UTCGHSA enrichmentGHSA-q2qc-v4ph-4mrq · GitHub severity HIGH · GitHub CVSS 7.8
  42. 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  43. 2026-09-02 14:11 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  44. 2026-09-01 13:53 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  45. 2026-09-01 04:39 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  46. 2026-08-31 00:16 UTCEG score recompute
  47. 2026-08-31 00:16 UTCGHSA enrichmentGHSA-q2qc-v4ph-4mrq · GitHub severity HIGH · GitHub CVSS 7.8
  48. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  49. 2026-08-30 11:18 UTCEG score recompute
  50. 2026-08-30 11:18 UTCGHSA enrichmentGHSA-q2qc-v4ph-4mrq · GitHub severity HIGH · GitHub CVSS 7.8
  51. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  52. 2026-08-28 21:41 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  53. 2026-08-27 22:12 UTCEG score recompute
  54. 2026-08-27 22:12 UTCGHSA enrichmentGHSA-q2qc-v4ph-4mrq · GitHub severity HIGH · GitHub CVSS 7.8
  55. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  56. 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  57. 2026-08-26 14:32 UTCGHSA enrichmentGHSA-q2qc-v4ph-4mrq · GitHub severity HIGH · GitHub CVSS 7.8
  58. 2026-08-25 14:54 UTCGHSA enrichmentGHSA-q2qc-v4ph-4mrq · GitHub severity HIGH · GitHub CVSS 7.8
  59. 2026-08-25 01:36 UTCEG score recompute
  60. 2026-08-25 01:36 UTCGHSA enrichmentGHSA-q2qc-v4ph-4mrq · GitHub severity HIGH · GitHub CVSS 7.8
  61. 2026-08-24 12:38 UTCEG score recompute
  62. 2026-08-24 12:38 UTCGHSA enrichmentGHSA-q2qc-v4ph-4mrq · GitHub severity HIGH · GitHub CVSS 7.8
  63. 2026-08-23 23:06 UTCGHSA enrichmentGHSA-q2qc-v4ph-4mrq · GitHub severity HIGH · GitHub CVSS 7.8
  64. 2026-08-23 09:44 UTCEG score recompute
  65. 2026-08-23 09:44 UTCGHSA enrichmentGHSA-q2qc-v4ph-4mrq · GitHub severity HIGH · GitHub CVSS 7.8
  66. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  67. 2026-08-22 20:46 UTCGHSA enrichmentGHSA-q2qc-v4ph-4mrq · GitHub severity HIGH · GitHub CVSS 7.8
  68. 2026-08-22 07:48 UTCEG score recompute
  69. 2026-08-22 07:48 UTCGHSA enrichmentGHSA-q2qc-v4ph-4mrq · GitHub severity HIGH · GitHub CVSS 7.8
  70. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  71. 2026-08-21 18:50 UTCGHSA enrichmentGHSA-q2qc-v4ph-4mrq · GitHub severity HIGH · GitHub CVSS 7.8
  72. 2026-08-21 05:52 UTCEG score recompute
  73. 2026-08-21 05:52 UTCGHSA enrichmentGHSA-q2qc-v4ph-4mrq · GitHub severity HIGH · GitHub CVSS 7.8
  74. 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  75. 2026-08-20 16:54 UTCGHSA enrichmentGHSA-q2qc-v4ph-4mrq · GitHub severity HIGH · GitHub CVSS 7.8

Frequently asked(5)

What is CVE-2026-14606?
CVE-2026-14606 is a high-severity vulnerability; its CVE record was 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 the CVE record for CVE-2026-14606 published?
The CVE record for CVE-2026-14606 was published on July 3, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of July 6, 2026; the record at its source may have been updated since.
Is CVE-2026-14606 actively exploited?
CVE-2026-14606 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (9th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-14606?
CVE-2026-14606 has a CVSS base score of 7.8 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-14606?
No fix for CVE-2026-14606 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix. The CVE record's description, written by its CNA (VulDB), states the affected versions: "A security flaw has been discovered in RT-Thread up to 5.0.2." No release containing a fix is confirmed on record. The vendor advisories EchelonGraph has for CVE-2026-14606 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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