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TI-2021-14585 Aliases CVE-2021-36167GHSA-2c7f-7v62-c4p8

An improper authorization vulnerabiltiy [CWE-285] in FortiClient Windows versions 7.0.0…

Priority LOW 25Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · NVD. Fix status from CNA.

Summary

An improper authorization vulnerabiltiy [CWE-285] in FortiClient Windows versions 7.0.0 and 6.4.6 and below and 6.2.8 and below may allow an unauthenticated attacker to bypass the webfilter control via modifying the session-id paramater.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00615 49th 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
Partial

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

Affected products

VendorProductAffected versionsFixed inStatusSource
FortinetFortinet FortiClientWindowsFortiClientWindows 7.0.0, 6.4.6, 6.4.5, 6.4.4, 6.4.3, 6.4.2, 6.4.1, 6.4.0, 6.2.8, 6.2.7, 6.2.6, 6.2.5, 6.2.4, 6.2.3, 6.2.2, 6.2.1, 6.2.0—No fix listedCNA
  • Fortinet FortiClientWindows VendorFortinet Affected FortiClientWindows 7.0.0, 6.4.6, 6.4.5, 6.4.4, 6.4.3, 6.4.2, 6.4.1, 6.4.0, 6.2.8, 6.2.7, 6.2.6, 6.2.5, 6.2.4, 6.2.3, 6.2.2, 6.2.1, 6.2.0 Fixed in — No fix listed CNA

CPE configurations NVD · 3

CPEVersionsRoleVendor
cpe:2.3:a:fortinet:forticlient:*:*:*:*:*:windows:*:*6.4.0 – 6.4.6VulnerableFortinet
cpe:2.3:a:fortinet:forticlient:6.2.7:*:*:*:*:windows:*:*6.2.7VulnerableFortinet
cpe:2.3:a:fortinet:forticlient:7.0.0:*:*:*:*:windows:*:*7.0.0VulnerableFortinet
  • cpe:2.3:a:fortinet:forticlient:*:*:*:*:*:windows:*:* Versions 6.4.0 – 6.4.6 Vulnerable ·Fortinet
  • cpe:2.3:a:fortinet:forticlient:6.2.7:*:*:*:*:windows:*:* Versions 6.2.7 Vulnerable ·Fortinet
  • cpe:2.3:a:fortinet:forticlient:7.0.0:*:*:*:*:windows:*:* Versions 7.0.0 Vulnerable ·Fortinet

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-36167
  2. 2026-10-03 Alias added: GHSA-2c7f-7v62-c4p8

References

Patch 1

  • TI-2019-13180 An unquoted service path vulnerability in the FortiClient FortiTray component of… CVSS 3.1CRITICAL 9.8
  • TI-2023-24393 Code injection in Fortinet FortiClientLinux CVSS 3.1CRITICAL 9.4
  • TI-2017-10335 Information disclosure in Fortinet FortiClient for Windows CVSS 3.0HIGH 8.8
  • TI-2016-06998 In FortiClientWindows 5.4.1 and 5.4.2, an attacker may escalate privilege via a FortiClientNamedPipe vulnerability. CVSS 3.0HIGH 8.8
  • TI-2019-03954 Untrusted search path in Fortinet FortiClientWindows CVSS 3.1HIGH 8.6
  • TI-2017-05007 A privilege escalation in Fortinet FortiClient Windows 5.4.3 and earlier as well as 5.6.0… CVSS 3.0HIGH 8.1
See all 85 →

Sources

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