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TI-2026-42652 Aliases CVE-2026-59836GHSA-gp77-r46p-xfvc

Improper certificate validation in Fortinet FortiClientEMS

Priority MEDIUM 42CWE-295Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Spoofing
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-295.

Summary

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>

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00221 12th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
FortinetFortiClientEMS7.4.3 – 7.4.5; 7.4.0 – 7.4.1; 7.2.12 – 7.2.14; 7.2.0 – 7.2.10—No fix listedCNA
  • FortiClientEMS VendorFortinet Affected 7.4.3 – 7.4.5; 7.4.0 – 7.4.1; 7.2.12 – 7.2.14; 7.2.0 – 7.2.10 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:fortinet:forticlientems:*:*:*:*:*:*:*:*7.2.0 – 7.4.1; 7.4.3 to before 7.4.6VulnerableFortinet
  • cpe:2.3:a:fortinet:forticlientems:*:*:*:*:*:*:*:* Versions 7.2.0 – 7.4.1; 7.4.3 to before 7.4.6 Vulnerable ·Fortinet

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-59836
  2. 2026-10-03 Alias added: GHSA-gp77-r46p-xfvc

References

Advisory 1

  • TI-2026-27717 Improper access control in Fortinet FortiClientEMS KEVCVSS 3.1CRITICAL 9.1
  • TI-2026-17435 SQL injection in Fortinet FortiClientEMS KEVCVSS 3.1CRITICAL 9.1
  • TI-2024-15227 Missing brute-force protection in Fortinet FortiClientEMS CVSS 3.1CRITICAL 9.8
  • TI-2025-37318 SQL injection in Fortinet FortiClientEMS CVSS 3.1MEDIUM 6.8
  • TI-2025-16735 Path traversal in Fortinet FortiClientEMS CVSS 3.1MEDIUM 5.0
  • TI-2026-28692 SQL injection in Fortinet FortiClientEMS CVSS 3.1MEDIUM 6.2
See all 13 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences