CVE-2026-59836

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.8 under NVD CVSS v3. EPSS exploit probability: 0.2%, top 87% of all CVEs by exploit prediction. GitHub Security Advisory enrichment pending alignment with NVD CVSS.

Triggered by: NVD CVSS baseline
Sources: epss, ghsa, nvd
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: 0%CVSS: 9.8Exploit: None knownExposed: 0

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

A improper certificate validation vulnerability in Fortinet FortiClientEMS 7.4.3 through 7.4.5, FortiClientEMS 7.4.0 through 7.4.1, FortiClientEMS 7.2 all versions may allow attacker to information disclosure via

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
44(Track)
EG Risk 44/100SSVC: 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%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
13%
KEV
Not listed

Published

July 14, 2026

Last Modified

July 15, 2026

Advisory Details (1)

Auto-updated Sep 19, 2026
No patch confirmed yet.
generic

Just a moment

https://fortiguard.fortinet.com/psirt/FG-IR-26-147

Vendor Advisories for CVE-2026-59836(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 15× in last 7d / 95× 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 325 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-59836?
CVE-2026-59836 is a critical vulnerability published on July 14, 2026. A improper certificate validation vulnerability in Fortinet FortiClientEMS 7.4.3 through 7.4.5, FortiClientEMS 7.4.0 through 7.4.1, FortiClientEMS 7.2 all versions may allow attacker to information disclosure via <insert attack vector here>
When was CVE-2026-59836 disclosed?
CVE-2026-59836 was first published in the National Vulnerability Database on July 14, 2026, with the most recent update on July 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-59836 actively exploited?
CVE-2026-59836 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 87.1% of all scored CVEs.
What is the CVSS score of CVE-2026-59836?
CVE-2026-59836 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2026-59836?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-59836, 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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