CVE-2026-35616

CRITICALPre-NVD 9.89.8—
EchelonGraph scoreHIGH confidence

Score elevated to 9.8 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2026-04-06), indicating real-world exploitation has been confirmed by US federal agencies. a secondary CVSS source baseline 9.8 retained for reference (NVD's own analysis pending). Confidence: HIGH.

Triggered by: CISA KEV (actively exploited)
Sources: cisa_kev, epss, ghsa, secondary
Trending — 5 sources updated this weekExploited in the wild
9.8EG
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS PROB: 89%CVSS: 9.8Exploit: cisa kev · ssvc active · epss top5pct · epss high · public exploitExposed: 0

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

A improper access control vulnerability in Fortinet FortiClientEMS 7.4.5 through 7.4.6 may allow an unauthenticated attacker to execute unauthorized code or commands via crafted requests.

CVSS v3
9.8
EG Score
9.8(high)
EG Risk
99(Act)
EG Risk 99/100SSVC: Act

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%
Exploitation100% × 40%
Automatability100% × 15%
Action: Fix now — active exploitation, automatable, high impact.
EPSS PROB
89%
EPSS %ILE
100%
KEV
⚠ Exploited

Published

April 4, 2026

Last Modified

July 24, 2026

Advisory Details (2)

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

Known Exploited Vulnerabilities Catalog | CISA

Known Exploited Vulnerabilities Catalog | CISA. Listed in CISA Known Exploited Vulnerabilities catalog.

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-35616
generic🔴 Active Exploitation

PSIRT | FortiGuard Labs

https://fortiguard.fortinet.com/psirt/FG-IR-26-099

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 33× in last 7d / 183× 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 419 total refreshes for this CVE.

  1. 2026-07-28 10:06 UTCGHSA enrichment
  2. 2026-07-28 05:44 UTCGHSA enrichment
  3. 2026-07-28 01:23 UTCGHSA enrichment
  4. 2026-07-27 21:02 UTCGHSA enrichment
  5. 2026-07-27 19:24 UTCCISA KEV update
  6. 2026-07-27 17:17 UTCCISA KEV update
  7. 2026-07-27 16:39 UTCGHSA enrichment
  8. 2026-07-27 12:19 UTCGHSA enrichment
  9. 2026-07-27 07:59 UTCGHSA enrichment
  10. 2026-07-27 03:39 UTCGHSA enrichment
  11. 2026-07-26 23:19 UTCGHSA enrichment
  12. 2026-07-26 18:58 UTCGHSA enrichment
  13. 2026-07-26 14:37 UTCEG score recompute
  14. 2026-07-26 14:37 UTCGHSA enrichment
  15. 2026-07-26 10:16 UTCGHSA enrichment
  16. 2026-07-26 05:56 UTCGHSA enrichment
  17. 2026-07-26 01:36 UTCEG score recompute
  18. 2026-07-26 01:36 UTCGHSA enrichment
  19. 2026-07-24 22:12 UTCNVD updateCVSS v3 → 9.8
  20. 2026-07-24 14:17 UTCEPSS rescore
  21. 2026-07-24 14:17 UTCEPSS rescore
  22. 2026-07-23 03:10 UTCEG score recompute
  23. 2026-07-22 21:00 UTCGHSA enrichment
  24. 2026-07-22 19:40 UTCCISA KEV update
  25. 2026-07-22 16:40 UTCEG score recompute
Show 75 more
  1. 2026-07-22 16:40 UTCGHSA enrichment
  2. 2026-07-22 14:08 UTCEPSS rescore
  3. 2026-07-22 12:18 UTCGHSA enrichment
  4. 2026-07-22 07:57 UTCGHSA enrichment
  5. 2026-07-22 03:36 UTCGHSA enrichment
  6. 2026-07-21 23:15 UTCGHSA enrichment
  7. 2026-07-21 17:24 UTCGHSA enrichment
  8. 2026-07-21 14:37 UTCCISA KEV update
  9. 2026-07-21 13:03 UTCGHSA enrichment
  10. 2026-07-21 08:43 UTCGHSA enrichment
  11. 2026-07-21 04:21 UTCGHSA enrichment
  12. 2026-07-21 00:01 UTCGHSA enrichment
  13. 2026-07-20 19:40 UTCGHSA enrichment
  14. 2026-07-20 15:20 UTCGHSA enrichment
  15. 2026-07-20 11:00 UTCGHSA enrichment
  16. 2026-07-20 06:39 UTCGHSA enrichment
  17. 2026-07-20 02:20 UTCGHSA enrichment
  18. 2026-07-19 21:59 UTCGHSA enrichment
  19. 2026-07-19 17:39 UTCGHSA enrichment
  20. 2026-07-19 13:19 UTCGHSA enrichment
  21. 2026-07-19 08:59 UTCGHSA enrichment
  22. 2026-07-19 04:39 UTCEG score recompute
  23. 2026-07-19 04:39 UTCGHSA enrichment
  24. 2026-07-19 02:29 UTCEPSS rescore
  25. 2026-07-19 00:18 UTCGHSA enrichment
  26. 2026-07-18 19:58 UTCGHSA enrichment
  27. 2026-07-18 15:38 UTCGHSA enrichment
  28. 2026-07-18 11:17 UTCEG score recompute
  29. 2026-07-18 11:17 UTCGHSA enrichment
  30. 2026-07-18 10:04 UTCEPSS rescore
  31. 2026-07-18 06:57 UTCGHSA enrichment
  32. 2026-07-18 02:37 UTCGHSA enrichment
  33. 2026-07-17 22:17 UTCGHSA enrichment
  34. 2026-07-17 17:56 UTCGHSA enrichment
  35. 2026-07-17 13:36 UTCGHSA enrichment
  36. 2026-07-17 09:16 UTCEG score recompute
  37. 2026-07-17 09:16 UTCGHSA enrichment
  38. 2026-07-17 04:55 UTCGHSA enrichment
  39. 2026-07-17 00:34 UTCGHSA enrichment
  40. 2026-07-16 20:13 UTCGHSA enrichment
  41. 2026-07-16 17:04 UTCCISA KEV update
  42. 2026-07-16 15:53 UTCGHSA enrichment
  43. 2026-07-16 11:32 UTCGHSA enrichment
  44. 2026-07-16 07:11 UTCGHSA enrichment
  45. 2026-07-16 02:51 UTCGHSA enrichment
  46. 2026-07-15 22:30 UTCGHSA enrichment
  47. 2026-07-15 18:10 UTCGHSA enrichment
  48. 2026-07-15 16:57 UTCEPSS rescore
  49. 2026-07-15 16:57 UTCEPSS rescore
  50. 2026-07-15 16:49 UTCCISA KEV update
  51. 2026-07-15 15:04 UTCCISA KEV update
  52. 2026-07-15 13:50 UTCGHSA enrichment
  53. 2026-07-15 09:29 UTCGHSA enrichment
  54. 2026-07-15 05:09 UTCGHSA enrichment
  55. 2026-07-15 00:49 UTCGHSA enrichment
  56. 2026-07-14 20:29 UTCGHSA enrichment
  57. 2026-07-14 18:05 UTCCISA KEV update
  58. 2026-07-14 16:09 UTCGHSA enrichment
  59. 2026-07-14 11:48 UTCGHSA enrichment
  60. 2026-07-14 07:28 UTCGHSA enrichment
  61. 2026-07-14 03:06 UTCGHSA enrichment
  62. 2026-07-13 22:46 UTCGHSA enrichment
  63. 2026-07-13 18:26 UTCGHSA enrichment
  64. 2026-07-13 17:07 UTCCISA KEV update
  65. 2026-07-13 14:05 UTCGHSA enrichment
  66. 2026-07-13 09:45 UTCGHSA enrichment
  67. 2026-07-13 06:13 UTCEPSS rescore
  68. 2026-07-13 06:13 UTCEPSS rescore
  69. 2026-07-13 05:24 UTCGHSA enrichment
  70. 2026-07-13 01:04 UTCGHSA enrichment
  71. 2026-07-12 20:43 UTCGHSA enrichment
  72. 2026-07-12 16:23 UTCGHSA enrichment
  73. 2026-07-12 12:02 UTCGHSA enrichment
  74. 2026-07-12 07:42 UTCGHSA enrichment
  75. 2026-07-12 03:21 UTCGHSA enrichment

Publicly available exploits

(1 reference)

Working exploit code is in the public domain. Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Nucleihttp/cves/2026/CVE-2026-35616.yaml
    First seen Jan 1, 2026

    FortiClient EMS - Authentication Bypass

    Open source ↗

Frequently asked(6)

What is CVE-2026-35616?
CVE-2026-35616 is a critical vulnerability published on April 4, 2026. A improper access control vulnerability in Fortinet FortiClientEMS 7.4.5 through 7.4.6 may allow an unauthenticated attacker to execute unauthorized code or commands via crafted requests.
When was CVE-2026-35616 disclosed?
CVE-2026-35616 was first published in the National Vulnerability Database on April 4, 2026, with the most recent update on July 24, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-35616 actively exploited?
Yes. CISA added CVE-2026-35616 to the Known Exploited Vulnerabilities catalog on April 6, 2026, affecting Fortinet FortiClient EMS. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2026-35616?
CVE-2026-35616 has a CVSS v3 base score of 9.8 (NVD).
Which products are affected by CVE-2026-35616?
CVE-2026-35616 affects Fortinet FortiClient EMS. The full affected-products list, including version ranges and fixed versions, is shown in the Affected Packages section of this page.
How do I remediate CVE-2026-35616?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-35616, 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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