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TI-2016-06998 Aliases CVE-2016-8493GHSA-q8g7-5r5g-85xm

In FortiClientWindows 5.4.1 and 5.4.2, an attacker may escalate privilege via a FortiClientNamedPipe vulnerability.

Priority MEDIUM 44CWE-264Published · Updated

Key facts

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

Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-264.

Summary

In FortiClientWindows 5.4.1 and 5.4.2, an attacker may escalate privilege via a FortiClientNamedPipe vulnerability.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.01822 78th 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
FortinetFortinet FortiClientFortiClient 5.4.2, 5.4.1—No fix listedCNA
  • Fortinet FortiClient VendorFortinet Affected FortiClient 5.4.2, 5.4.1 Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:fortinet:forticlient:5.4.1:*:*:*:*:windows:*:*5.4.1VulnerableFortinet
cpe:2.3:a:fortinet:forticlient:5.4.2:*:*:*:*:windows:*:*5.4.2VulnerableFortinet
  • cpe:2.3:a:fortinet:forticlient:5.4.1:*:*:*:*:windows:*:* Versions 5.4.1 Vulnerable ·Fortinet
  • cpe:2.3:a:fortinet:forticlient:5.4.2:*:*:*:*:windows:*:* Versions 5.4.2 Vulnerable ·Fortinet

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2016-8493
  2. 2026-10-03 Alias added: GHSA-q8g7-5r5g-85xm

References

Advisory 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-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
  • TI-2024-03415 DHCP routing options can manipulate interface-based VPN traffic CVSS 3.1HIGH 7.6
See all 85 →

Sources

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