CVE-2026-1840

HIGHPre-NVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-06-24. a secondary CVSS source baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 7.5Exploit: None knownExposed: 0

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

The Aclara Metrum Cellular Web Interface is vulnerable to unauthorized access due to the absence of authentication controls on critical system functions. This weakness exposes essential configuration settings, allowing attackers to alter operational parameters and trigger system restarts without restriction. Such unauthorized changes can disrupt normal functionality and, if performed repeatedly, may lead to a loss of communications to the device.

CVSS v3
7.5
EG Score
7.5(medium)
EG Risk
38(Track)
EG Risk 38/100SSVC: 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
Severity75% × 45%
Exploitation1% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
41%
KEV
Not listed

Published

June 24, 2026

Last Modified

June 25, 2026

Advisory Details (3)

Auto-updated Jun 25, 2026
Patch available. Sources: cisa.
cisa Patch Available

Hubbell Aclara Metrum Cellular Web Interface | CISA

https://www.cisa.gov/news-events/ics-advisories/icsa-26-174-07
generic

CSAF/csaf_files/OT/white/2026/icsa-26-174-07.json at develop · cisagov/CSAF · GitHub

https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-174-07.json
generic
https://aclara.my.site.com/AclaraConnect/s/

Vendor Advisories for CVE-2026-1840(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 17× in last 7d / 88× 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. 2026-07-27 21:07 UTCEG score recompute
  2. 2026-07-27 21:07 UTCGHSA enrichment
  3. 2026-07-27 14:13 UTCEPSS rescore
  4. 2026-07-27 06:09 UTCGHSA enrichment
  5. 2026-07-26 15:22 UTCEG score recompute
  6. 2026-07-26 15:22 UTCGHSA enrichment
  7. 2026-07-26 14:54 UTCEPSS rescore
  8. 2026-07-26 14:54 UTCEPSS rescore
  9. 2026-07-25 14:17 UTCEPSS rescore
  10. 2026-07-25 14:17 UTCEPSS rescore
  11. 2026-07-24 14:17 UTCEPSS rescore
  12. 2026-07-23 14:18 UTCEPSS rescore
  13. 2026-07-23 14:18 UTCEPSS rescore
  14. 2026-07-23 03:06 UTCEG score recompute
  15. 2026-07-22 14:08 UTCEPSS rescore
  16. 2026-07-21 15:24 UTCEPSS rescore
  17. 2026-07-21 15:24 UTCEPSS rescore
  18. 2026-07-20 17:08 UTCEPSS rescore
  19. 2026-07-19 14:31 UTCEPSS rescore
  20. 2026-07-19 14:31 UTCEPSS rescore
  21. 2026-07-19 02:29 UTCEPSS rescore
  22. 2026-07-19 02:28 UTCEPSS rescore
  23. 2026-07-18 10:04 UTCEPSS rescore
  24. 2026-07-18 10:04 UTCEPSS rescore
  25. 2026-07-16 23:59 UTCGHSA enrichment
Show 73 more
  1. 2026-07-16 17:03 UTCEPSS rescore
  2. 2026-07-16 17:03 UTCEPSS rescore
  3. 2026-07-16 11:06 UTCGHSA enrichment
  4. 2026-07-15 21:58 UTCGHSA enrichment
  5. 2026-07-15 16:57 UTCEPSS rescore
  6. 2026-07-15 16:57 UTCEPSS rescore
  7. 2026-07-15 09:04 UTCGHSA enrichment
  8. 2026-07-15 02:00 UTCEPSS rescore
  9. 2026-07-15 02:00 UTCEPSS rescore
  10. 2026-07-14 20:09 UTCGHSA enrichment
  11. 2026-07-14 07:16 UTCGHSA enrichment
  12. 2026-07-13 22:30 UTCEPSS rescore
  13. 2026-07-13 18:23 UTCGHSA enrichment
  14. 2026-07-13 06:13 UTCEPSS rescore
  15. 2026-07-13 06:13 UTCEPSS rescore
  16. 2026-07-13 05:30 UTCGHSA enrichment
  17. 2026-07-12 16:37 UTCGHSA enrichment
  18. 2026-07-12 05:46 UTCEPSS rescore
  19. 2026-07-12 05:46 UTCEPSS rescore
  20. 2026-07-12 03:43 UTCGHSA enrichment
  21. 2026-07-11 14:50 UTCGHSA enrichment
  22. 2026-07-11 08:27 UTCEPSS rescore
  23. 2026-07-11 01:56 UTCGHSA enrichment
  24. 2026-07-10 13:02 UTCGHSA enrichment
  25. 2026-07-10 00:06 UTCGHSA enrichment
  26. 2026-07-09 19:10 UTCEPSS rescore
  27. 2026-07-09 11:12 UTCGHSA enrichment
  28. 2026-07-08 22:19 UTCGHSA enrichment
  29. 2026-07-08 15:15 UTCEPSS rescore
  30. 2026-07-08 15:15 UTCEPSS rescore
  31. 2026-07-08 09:26 UTCGHSA enrichment
  32. 2026-07-07 20:34 UTCGHSA enrichment
  33. 2026-07-07 13:46 UTCEPSS rescore
  34. 2026-07-07 07:40 UTCGHSA enrichment
  35. 2026-07-06 18:19 UTCGHSA enrichment
  36. 2026-07-06 16:27 UTCEPSS rescore
  37. 2026-07-06 05:14 UTCGHSA enrichment
  38. 2026-07-06 02:23 UTCEPSS rescore
  39. 2026-07-05 16:20 UTCGHSA enrichment
  40. 2026-07-05 03:28 UTCGHSA enrichment
  41. 2026-07-05 02:30 UTCEPSS rescore
  42. 2026-07-05 02:30 UTCEPSS rescore
  43. 2026-07-04 14:35 UTCGHSA enrichment
  44. 2026-07-04 06:31 UTCEPSS rescore
  45. 2026-07-04 01:43 UTCGHSA enrichment
  46. 2026-07-03 12:49 UTCGHSA enrichment
  47. 2026-07-02 23:18 UTCGHSA enrichment
  48. 2026-07-02 10:25 UTCGHSA enrichment
  49. 2026-07-01 21:32 UTCGHSA enrichment
  50. 2026-07-01 15:06 UTCEPSS rescore
  51. 2026-07-01 15:06 UTCEPSS rescore
  52. 2026-07-01 08:38 UTCGHSA enrichment
  53. 2026-06-30 23:22 UTCEPSS rescore
  54. 2026-06-30 19:45 UTCGHSA enrichment
  55. 2026-06-30 06:53 UTCGHSA enrichment
  56. 2026-06-29 17:58 UTCGHSA enrichment
  57. 2026-06-29 14:06 UTCEPSS rescore
  58. 2026-06-29 05:05 UTCGHSA enrichment
  59. 2026-06-28 16:13 UTCGHSA enrichment
  60. 2026-06-28 14:07 UTCEPSS rescore
  61. 2026-06-28 04:56 UTCEPSS rescore
  62. 2026-06-28 04:56 UTCEPSS rescore
  63. 2026-06-28 03:20 UTCGHSA enrichment
  64. 2026-06-27 14:27 UTCGHSA enrichment
  65. 2026-06-27 03:08 UTCEPSS rescore
  66. 2026-06-27 01:33 UTCGHSA enrichment
  67. 2026-06-26 12:41 UTCGHSA enrichment
  68. 2026-06-25 23:48 UTCGHSA enrichment
  69. 2026-06-25 15:47 UTCNVD updateCVSS v4 → 8.7
  70. 2026-06-25 13:49 UTCEPSS rescore
  71. 2026-06-25 10:55 UTCGHSA enrichment
  72. 2026-06-24 22:02 UTCEG score recompute
  73. 2026-06-24 22:02 UTCGHSA enrichment

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-1840?
CVE-2026-1840 is a high vulnerability published on June 24, 2026. The Aclara Metrum Cellular Web Interface is vulnerable to unauthorized access due to the absence of authentication controls on critical system functions. This weakness exposes essential configuration settings, allowing attackers to alter operational parameters and trigger system restarts without…
When was CVE-2026-1840 disclosed?
CVE-2026-1840 was first published in the National Vulnerability Database on June 24, 2026, with the most recent update on June 25, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-1840 actively exploited?
CVE-2026-1840 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 59.5% of all scored CVEs.
What is the CVSS score of CVE-2026-1840?
CVE-2026-1840 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-1840?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-1840, 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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