CVE-2026-28742

CRITICALPre-NVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-06-12. a secondary CVSS source baseline 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
9.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 9.8Exploit: NoneExposed: 0

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

Naxclow devices use a uniform request-signing scheme based on a hard-coded, platform-wide salt embedded in every firmware image. Once this salt is recovered from any device, an attacker can generate valid signatures for arbitrary device or account operations due to the absence of per-device keys, server-side nonce tracking, or replay protections. Combined with the system’s use of plain HTTP for control-plane traffic, the construction enables broad request forgery and impersonation across the platform.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
49(Track)
EG Risk 49/100SSVC: 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
Severity98% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
25.4%
KEV
Not listed

Published

June 12, 2026

Last Modified

June 16, 2026

Advisory Details (2)

Auto-updated Jun 20, 2026
Patch available. Sources: cisa.
cisa Patch Available

Naxclow IoT Platform | CISA

https://www.cisa.gov/news-events/ics-advisories/icsa-26-162-02
generic

CSAF/csaf_files/OT/white/2026/icsa-26-162-02.json at develop · cisagov/CSAF · GitHub

https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-162-02.json

Vendor Advisories for CVE-2026-28742(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 16× in last 7d / 165× 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 245 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-28742?
CVE-2026-28742 is a critical vulnerability published on June 12, 2026. Naxclow devices use a uniform request-signing scheme based on a hard-coded, platform-wide salt embedded in every firmware image. Once this salt is recovered from any device, an attacker can generate valid signatures for arbitrary device or account operations due to the absence of per-device keys,…
When was CVE-2026-28742 disclosed?
CVE-2026-28742 was first published in the National Vulnerability Database on June 12, 2026, with the most recent update on June 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-28742 actively exploited?
CVE-2026-28742 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 25.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-28742?
CVE-2026-28742 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2026-28742?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-28742, 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.

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