CVE-2026-21369

MEDIUMNVD 5.35.3
EchelonGraph scoreMEDIUM confidence

Score 5.3 from GitHub Security Advisory published 2026-07-06. NVD baseline CVSS 5.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this week
5.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.3Exploit: None knownExposed: 0

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

Memory Corruption when handling flash commands due to outdated LED count values being used after userspace modification.

CVSS v3
5.3
EG Score
5.3(medium)
EG Risk
24(Track)
EG Risk 24/100SSVC: 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
Severity53% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
0%
KEV
Not listed

Published

July 6, 2026

Last Modified

July 7, 2026

Advisory Details (1)

Auto-updated Jul 7, 2026
No patch confirmed yet.

Vendor Advisories for CVE-2026-21369(1)

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

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 5× in last 7d / 37× 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. 2026-09-11 14:52 UTCEPSS rescore
  2. 2026-09-10 09:34 UTCEPSS rescore
  3. 2026-09-08 22:00 UTCEPSS rescore
  4. 2026-09-05 23:05 UTCEG score recompute
  5. 2026-09-05 23:05 UTCGHSA enrichment
  6. 2026-09-04 05:06 UTCEPSS rescore
  7. 2026-09-01 13:53 UTCEPSS rescore
  8. 2026-08-30 08:00 UTCEG score recompute
  9. 2026-08-30 08:00 UTCGHSA enrichment
  10. 2026-08-28 21:41 UTCEPSS rescore
  11. 2026-08-27 21:58 UTCEG score recompute
  12. 2026-08-27 21:58 UTCGHSA enrichment
  13. 2026-08-27 14:25 UTCEPSS rescore
  14. 2026-08-26 13:54 UTCGHSA enrichment
  15. 2026-08-24 20:48 UTCEG score recompute
  16. 2026-08-24 20:48 UTCGHSA enrichment
  17. 2026-08-23 20:01 UTCEG score recompute
  18. 2026-08-23 20:01 UTCGHSA enrichment
  19. 2026-08-23 00:19 UTCEPSS rescore
  20. 2026-08-22 21:43 UTCEG score recompute
  21. 2026-08-22 21:43 UTCGHSA enrichment
  22. 2026-08-21 23:49 UTCEPSS rescore
  23. 2026-08-21 23:08 UTCGHSA enrichment
  24. 2026-08-21 00:46 UTCEG score recompute
  25. 2026-08-21 00:46 UTCGHSA enrichment
Show 62 more
  1. 2026-08-20 22:55 UTCEPSS rescore
  2. 2026-08-20 02:27 UTCGHSA enrichment
  3. 2026-08-18 22:29 UTCGHSA enrichment
  4. 2026-08-17 23:14 UTCGHSA enrichment
  5. 2026-08-17 00:46 UTCGHSA enrichment
  6. 2026-08-16 02:28 UTCGHSA enrichment
  7. 2026-08-15 04:10 UTCGHSA enrichment
  8. 2026-08-14 05:51 UTCEG score recompute
  9. 2026-08-14 05:51 UTCGHSA enrichment
  10. 2026-08-13 22:00 UTCEPSS rescore
  11. 2026-08-13 07:33 UTCEG score recompute
  12. 2026-08-13 07:33 UTCGHSA enrichment
  13. 2026-08-12 13:50 UTCEPSS rescore
  14. 2026-08-12 08:48 UTCEG score recompute
  15. 2026-08-12 08:48 UTCGHSA enrichment
  16. 2026-08-11 13:42 UTCEPSS rescore
  17. 2026-08-11 10:29 UTCEG score recompute
  18. 2026-08-11 10:29 UTCGHSA enrichment
  19. 2026-08-11 00:00 UTCEPSS rescore
  20. 2026-08-10 12:10 UTCGHSA enrichment
  21. 2026-08-09 13:52 UTCGHSA enrichment
  22. 2026-08-08 15:34 UTCGHSA enrichment
  23. 2026-08-07 17:15 UTCEG score recompute
  24. 2026-08-07 17:15 UTCGHSA enrichment
  25. 2026-08-06 18:57 UTCEG score recompute
  26. 2026-08-06 18:57 UTCGHSA enrichment
  27. 2026-08-05 20:39 UTCEG score recompute
  28. 2026-08-05 20:39 UTCGHSA enrichment
  29. 2026-08-05 19:17 UTCEPSS rescore
  30. 2026-08-04 22:21 UTCGHSA enrichment
  31. 2026-08-04 00:01 UTCGHSA enrichment
  32. 2026-08-03 01:43 UTCGHSA enrichment
  33. 2026-08-02 03:24 UTCGHSA enrichment
  34. 2026-08-01 05:05 UTCGHSA enrichment
  35. 2026-07-31 06:46 UTCEG score recompute
  36. 2026-07-31 06:46 UTCGHSA enrichment
  37. 2026-07-30 08:26 UTCGHSA enrichment
  38. 2026-07-29 08:06 UTCEG score recompute
  39. 2026-07-29 08:06 UTCGHSA enrichment
  40. 2026-07-28 09:25 UTCGHSA enrichment
  41. 2026-07-27 11:05 UTCGHSA enrichment
  42. 2026-07-26 12:47 UTCEG score recompute
  43. 2026-07-26 12:47 UTCGHSA enrichment
  44. 2026-07-23 03:06 UTCEG score recompute
  45. 2026-07-17 02:11 UTCGHSA enrichment
  46. 2026-07-16 03:50 UTCGHSA enrichment
  47. 2026-07-15 05:31 UTCGHSA enrichment
  48. 2026-07-14 07:07 UTCGHSA enrichment
  49. 2026-07-13 08:47 UTCGHSA enrichment
  50. 2026-07-13 06:13 UTCEPSS rescore
  51. 2026-07-13 06:13 UTCEPSS rescore
  52. 2026-07-12 10:26 UTCGHSA enrichment
  53. 2026-07-11 12:06 UTCGHSA enrichment
  54. 2026-07-10 13:48 UTCGHSA enrichment
  55. 2026-07-09 15:28 UTCGHSA enrichment
  56. 2026-07-08 17:09 UTCGHSA enrichment
  57. 2026-07-08 15:15 UTCEPSS rescore
  58. 2026-07-08 15:15 UTCEPSS rescore
  59. 2026-07-07 18:51 UTCGHSA enrichment
  60. 2026-07-07 13:46 UTCEPSS rescore
  61. 2026-07-06 20:31 UTCEG score recompute
  62. 2026-07-06 20:29 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-21369?
CVE-2026-21369 is a medium vulnerability published on July 6, 2026. Memory Corruption when handling flash commands due to outdated LED count values being used after userspace modification.
When was CVE-2026-21369 disclosed?
CVE-2026-21369 was first published in the National Vulnerability Database on July 6, 2026, with the most recent update on July 7, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-21369 actively exploited?
CVE-2026-21369 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 99.8% of all scored CVEs.
What is the CVSS score of CVE-2026-21369?
CVE-2026-21369 has a CVSS v3 base score of 5.3 (NVD).
How do I remediate CVE-2026-21369?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-21369, 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

Explore the affected products and dependency analysis for CVE-2026-21369

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