CVE-2026-14629

MEDIUMPre-NVD 4.34.3—
EchelonGraph scoreMEDIUM confidence

Score 4.3 from GitHub Security Advisory (severity: LOW) published 2026-07-04. a secondary CVSS source baseline 4.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this weekElevated
4.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 4.3Exploit: Elevated riskExposed: 0

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

A flaw has been found in RT-Thread up to 5.2.2. Affected is the function read/write/sys_ioctl of the file components/lwp/lwp_syscall.c of the component Parameter Handler. Executing a manipulation can lead to divide by zero. The attack may be launched remotely. The exploit has been published and may be used. The pull request to fix this issue awaits acceptance.

CVSS v3
4.3
EG Score
4.3(medium)
EG Risk
35(Track)
EG Risk 35/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity43% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
43%
KEV
Not listed

Published

July 4, 2026

Last Modified

July 6, 2026

Advisory Details (3)

Auto-updated Jul 4, 2026
No patch confirmed yet. Sources: github_pr.
github_pr

Harden serial ioctl user-pointer handling in RT-Smart

Upstream fix in progress (PR #11453 · RT-Thread/rt-thread, state=open)

https://github.com/RT-Thread/rt-thread/pull/11453
generic

[Bug] Security-related Bug RT-Smart serial ioctl trusts user pointers and can crash the kernel · Issue #11429 · RT-Thread/rt-thread · GitHub

https://github.com/RT-Thread/rt-thread/issues/11429
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-2026-14629(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 16× in last 7d / 81× 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.

Showing the most recent 100 of 125 total refreshes for this CVE.

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

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Frequently asked(5)

What is CVE-2026-14629?
CVE-2026-14629 is a medium vulnerability published on July 4, 2026. A flaw has been found in RT-Thread up to 5.2.2. Affected is the function read/write/sysioctl of the file components/lwp/lwpsyscall.c of the component Parameter Handler. Executing a manipulation can lead to divide by zero. The attack may be launched remotely. The exploit has been published and may…
When was CVE-2026-14629 disclosed?
CVE-2026-14629 was first published in the National Vulnerability Database on July 4, 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-2026-14629 actively exploited?
CVE-2026-14629 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 57.4% of all scored CVEs.
What is the CVSS score of CVE-2026-14629?
CVE-2026-14629 has a CVSS v3 base score of 4.3 (NVD).
How do I remediate CVE-2026-14629?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-14629, 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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