CVE-2026-20744

CRITICALPre-NVD 9.89.8—
EchelonGraph scoreHIGH confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-07-11. 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
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 9.8Exploit: None knownExposed: 0

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

The charging station websocket endpoint accepts connections without proper authentication, which could lead to privilege escalation.

CVSS v3
9.8
EG Score
9.8(high)
EG Risk
59(Track)
EG Risk 59/100SSVC: 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%
Exploitation1% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
43%
KEV
Not listed

Published

July 10, 2026

Last Modified

July 14, 2026

Advisory Details (3)

Auto-updated Jul 25, 2026
⚠️ Active exploitation confirmed. Patch available. Sources: cisa.
generic

Nous joindre | Hydro-Québec

https://www.hydroquebec.com/nous-joindre/
cisa Patch Available🔴 Active Exploitation

Hydro-Québec Le Circuit Electrique charging station backend | CISA

Hydro-Québec Le Circuit Electrique charging station backend | CISA. Listed in CISA Known Exploited Vulnerabilities catalog.

https://www.cisa.gov/news-events/ics-advisories/icsa-26-188-01
generic

CSAF/csaf_files/OT/white/2026/icsa-26-188-01.json at develop · cisagov/CSAF · GitHub

https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-188-01.json

Vendor Advisories for CVE-2026-20744(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 41× in last 7d / 106× 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 106 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-20744?
CVE-2026-20744 is a critical vulnerability published on July 10, 2026. The charging station websocket endpoint accepts connections without proper authentication, which could lead to privilege escalation.
When was CVE-2026-20744 disclosed?
CVE-2026-20744 was first published in the National Vulnerability Database on July 10, 2026, with the most recent update on July 14, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-20744 actively exploited?
CVE-2026-20744 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 56.5% of all scored CVEs.
What is the CVSS score of CVE-2026-20744?
CVE-2026-20744 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2026-20744?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-20744, 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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